./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1b2e6fc3090957bb44fbf381fe29c5adbd1106bdb77e2b6b77c5e6e962ffc5b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:55:45,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:55:45,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:55:45,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:55:45,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:55:45,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:55:45,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:55:45,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:55:45,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:55:45,352 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:55:45,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:55:45,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:55:45,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:55:45,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:55:45,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:55:45,354 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:55:45,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:55:45,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:55:45,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:55:45,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:55:45,356 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> f1b2e6fc3090957bb44fbf381fe29c5adbd1106bdb77e2b6b77c5e6e962ffc5b [2024-12-02 05:55:45,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:55:45,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:55:45,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:55:45,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:55:45,581 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:55:45,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c [2024-12-02 05:55:48,203 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/data/d545d338c/67132202ba5744c0a303896941b1faae/FLAG75c977e43 [2024-12-02 05:55:48,483 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:55:48,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c [2024-12-02 05:55:48,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/data/d545d338c/67132202ba5744c0a303896941b1faae/FLAG75c977e43 [2024-12-02 05:55:48,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/data/d545d338c/67132202ba5744c0a303896941b1faae [2024-12-02 05:55:48,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:55:48,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:55:48,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:55:48,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:55:48,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:55:48,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:55:48" (1/1) ... [2024-12-02 05:55:48,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781b22b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:48, skipping insertion in model container [2024-12-02 05:55:48,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:55:48" (1/1) ... [2024-12-02 05:55:48,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:55:49,175 WARN L250 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_704b6043-8348-4f5a-aa99-06bb1d377e5e/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c[37973,37986] [2024-12-02 05:55:49,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:55:49,304 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:55:49,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-12-02 05:55:49,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [414] [2024-12-02 05:55:49,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1494] [2024-12-02 05:55:49,313 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1543] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1561] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1570] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1718] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1943] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2320] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2717] [2024-12-02 05:55:49,314 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2995] [2024-12-02 05:55:49,365 WARN L250 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_704b6043-8348-4f5a-aa99-06bb1d377e5e/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c[37973,37986] [2024-12-02 05:55:49,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:55:49,428 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:55:49,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49 WrapperNode [2024-12-02 05:55:49,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:55:49,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:55:49,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:55:49,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:55:49,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,481 INFO L138 Inliner]: procedures = 131, calls = 212, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 929 [2024-12-02 05:55:49,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:55:49,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:55:49,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:55:49,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:55:49,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,519 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-12-02 05:55:49,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,535 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:55:49,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:55:49,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:55:49,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:55:49,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (1/1) ... [2024-12-02 05:55:49,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:55:49,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:49,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:55:49,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:55:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-12-02 05:55:49,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-12-02 05:55:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-12-02 05:55:49,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-12-02 05:55:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-12-02 05:55:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-12-02 05:55:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-12-02 05:55:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-12-02 05:55:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-12-02 05:55:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-12-02 05:55:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-12-02 05:55:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-12-02 05:55:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-12-02 05:55:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-12-02 05:55:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-12-02 05:55:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-12-02 05:55:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-12-02 05:55:49,614 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-12-02 05:55:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-12-02 05:55:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-12-02 05:55:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-12-02 05:55:49,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-12-02 05:55:49,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:55:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:55:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:55:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:55:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-12-02 05:55:49,617 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-12-02 05:55:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-12-02 05:55:49,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-12-02 05:55:49,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:55:49,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:55:49,782 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:55:49,784 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:55:50,645 INFO L? ?]: Removed 510 outVars from TransFormulas that were not future-live. [2024-12-02 05:55:50,645 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:55:50,662 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:55:50,662 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:55:50,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:55:50 BoogieIcfgContainer [2024-12-02 05:55:50,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:55:50,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:55:50,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:55:50,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:55:50,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:55:48" (1/3) ... [2024-12-02 05:55:50,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238bab96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:55:50, skipping insertion in model container [2024-12-02 05:55:50,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:55:49" (2/3) ... [2024-12-02 05:55:50,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238bab96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:55:50, skipping insertion in model container [2024-12-02 05:55:50,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:55:50" (3/3) ... [2024-12-02 05:55:50,671 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product29.cil.c [2024-12-02 05:55:50,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:55:50,689 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product29.cil.c that has 30 procedures, 414 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:55:50,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:55:50,763 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=PETRI_NET, 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;@61c6e2f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:55:50,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:55:50,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 414 states, 319 states have (on average 1.554858934169279) internal successors, (496), 324 states have internal predecessors, (496), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 05:55:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 05:55:50,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:50,788 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:50,789 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:50,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1804980866, now seen corresponding path program 1 times [2024-12-02 05:55:50,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:50,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662005819] [2024-12-02 05:55:50,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 05:55:51,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:51,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662005819] [2024-12-02 05:55:51,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662005819] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146368752] [2024-12-02 05:55:51,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:51,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:51,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:51,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:51,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:55:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:51,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 05:55:51,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 05:55:51,884 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:55:51,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146368752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:51,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:55:51,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 05:55:51,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648726538] [2024-12-02 05:55:51,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:51,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:55:51,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:51,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:55:51,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:55:51,911 INFO L87 Difference]: Start difference. First operand has 414 states, 319 states have (on average 1.554858934169279) internal successors, (496), 324 states have internal predecessors, (496), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 05:55:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:51,989 INFO L93 Difference]: Finished difference Result 643 states and 952 transitions. [2024-12-02 05:55:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:55:51,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2024-12-02 05:55:51,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:52,003 INFO L225 Difference]: With dead ends: 643 [2024-12-02 05:55:52,004 INFO L226 Difference]: Without dead ends: 409 [2024-12-02 05:55:52,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:55:52,011 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 1 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:52,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1233 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-12-02 05:55:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 408. [2024-12-02 05:55:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 314 states have (on average 1.5477707006369428) internal successors, (486), 318 states have internal predecessors, (486), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-12-02 05:55:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 613 transitions. [2024-12-02 05:55:52,076 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 613 transitions. Word has length 151 [2024-12-02 05:55:52,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:52,078 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 613 transitions. [2024-12-02 05:55:52,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 05:55:52,078 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 613 transitions. [2024-12-02 05:55:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 05:55:52,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:52,084 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:52,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:55:52,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 05:55:52,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:52,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash 375584065, now seen corresponding path program 1 times [2024-12-02 05:55:52,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:52,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711087193] [2024-12-02 05:55:52,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:52,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 05:55:52,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:52,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711087193] [2024-12-02 05:55:52,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711087193] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:52,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791993055] [2024-12-02 05:55:52,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:52,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:52,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:52,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:52,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:55:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:53,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:55:53,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:53,049 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 05:55:53,049 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:55:53,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791993055] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:53,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:55:53,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 05:55:53,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394409281] [2024-12-02 05:55:53,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:53,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:55:53,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:53,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:55:53,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:55:53,052 INFO L87 Difference]: Start difference. First operand 408 states and 613 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:55:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:53,103 INFO L93 Difference]: Finished difference Result 859 states and 1310 transitions. [2024-12-02 05:55:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:55:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 175 [2024-12-02 05:55:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:53,109 INFO L225 Difference]: With dead ends: 859 [2024-12-02 05:55:53,109 INFO L226 Difference]: Without dead ends: 477 [2024-12-02 05:55:53,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:55:53,112 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 126 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:53,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1190 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:53,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-12-02 05:55:53,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 469. [2024-12-02 05:55:53,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 361 states have (on average 1.5678670360110802) internal successors, (566), 365 states have internal predecessors, (566), 78 states have call successors, (78), 29 states have call predecessors, (78), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 05:55:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 721 transitions. [2024-12-02 05:55:53,155 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 721 transitions. Word has length 175 [2024-12-02 05:55:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:53,155 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 721 transitions. [2024-12-02 05:55:53,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:55:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 721 transitions. [2024-12-02 05:55:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 05:55:53,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:53,159 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:53,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 05:55:53,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:53,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:53,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -758691601, now seen corresponding path program 1 times [2024-12-02 05:55:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:53,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124255832] [2024-12-02 05:55:53,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:53,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 05:55:53,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124255832] [2024-12-02 05:55:53,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124255832] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494792517] [2024-12-02 05:55:53,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:53,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:53,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:53,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:53,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 05:55:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:53,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:55:53,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 05:55:53,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:55:53,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494792517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:53,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:55:53,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 05:55:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099478033] [2024-12-02 05:55:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:53,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:55:53,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:53,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:55:53,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:53,924 INFO L87 Difference]: Start difference. First operand 469 states and 721 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 05:55:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:53,987 INFO L93 Difference]: Finished difference Result 929 states and 1432 transitions. [2024-12-02 05:55:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:55:53,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2024-12-02 05:55:53,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:53,990 INFO L225 Difference]: With dead ends: 929 [2024-12-02 05:55:53,991 INFO L226 Difference]: Without dead ends: 471 [2024-12-02 05:55:53,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:53,992 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 2 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:53,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2405 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:53,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-12-02 05:55:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2024-12-02 05:55:54,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 362 states have (on average 1.5662983425414365) internal successors, (567), 367 states have internal predecessors, (567), 78 states have call successors, (78), 29 states have call predecessors, (78), 30 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2024-12-02 05:55:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 724 transitions. [2024-12-02 05:55:54,014 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 724 transitions. Word has length 157 [2024-12-02 05:55:54,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:54,015 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 724 transitions. [2024-12-02 05:55:54,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 05:55:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 724 transitions. [2024-12-02 05:55:54,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-02 05:55:54,018 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:54,019 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:54,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 05:55:54,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:54,219 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:54,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:54,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1658974513, now seen corresponding path program 1 times [2024-12-02 05:55:54,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:54,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122680549] [2024-12-02 05:55:54,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:54,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 05:55:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122680549] [2024-12-02 05:55:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122680549] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410643306] [2024-12-02 05:55:54,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:54,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:54,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:54,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:54,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 05:55:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:54,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 05:55:54,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 05:55:54,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:55:54,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410643306] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:54,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:55:54,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-12-02 05:55:54,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075127551] [2024-12-02 05:55:54,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:54,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:55:54,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:54,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:55:54,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:55:54,816 INFO L87 Difference]: Start difference. First operand 471 states and 724 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 05:55:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:54,888 INFO L93 Difference]: Finished difference Result 931 states and 1437 transitions. [2024-12-02 05:55:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:55:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 177 [2024-12-02 05:55:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:54,892 INFO L225 Difference]: With dead ends: 931 [2024-12-02 05:55:54,892 INFO L226 Difference]: Without dead ends: 473 [2024-12-02 05:55:54,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:55:54,895 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 2 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:54,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2391 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-12-02 05:55:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-12-02 05:55:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 363 states have (on average 1.5647382920110193) internal successors, (568), 369 states have internal predecessors, (568), 78 states have call successors, (78), 29 states have call predecessors, (78), 31 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-12-02 05:55:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 730 transitions. [2024-12-02 05:55:54,921 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 730 transitions. Word has length 177 [2024-12-02 05:55:54,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:54,921 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 730 transitions. [2024-12-02 05:55:54,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 05:55:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 730 transitions. [2024-12-02 05:55:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 05:55:54,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:54,925 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:54,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 05:55:55,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:55,126 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:55,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:55,126 INFO L85 PathProgramCache]: Analyzing trace with hash 769114902, now seen corresponding path program 1 times [2024-12-02 05:55:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:55,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167304738] [2024-12-02 05:55:55,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:55,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 05:55:55,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:55,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167304738] [2024-12-02 05:55:55,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167304738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:55,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:55,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:55:55,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943818908] [2024-12-02 05:55:55,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:55,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:55:55,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:55,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:55:55,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:55:55,341 INFO L87 Difference]: Start difference. First operand 473 states and 730 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 05:55:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:55,393 INFO L93 Difference]: Finished difference Result 923 states and 1428 transitions. [2024-12-02 05:55:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:55:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2024-12-02 05:55:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:55,397 INFO L225 Difference]: With dead ends: 923 [2024-12-02 05:55:55,397 INFO L226 Difference]: Without dead ends: 473 [2024-12-02 05:55:55,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:55:55,399 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 2 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:55,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2409 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-12-02 05:55:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-12-02 05:55:55,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 363 states have (on average 1.5647382920110193) internal successors, (568), 369 states have internal predecessors, (568), 78 states have call successors, (78), 29 states have call predecessors, (78), 31 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2024-12-02 05:55:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 729 transitions. [2024-12-02 05:55:55,438 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 729 transitions. Word has length 159 [2024-12-02 05:55:55,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:55,438 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 729 transitions. [2024-12-02 05:55:55,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 05:55:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 729 transitions. [2024-12-02 05:55:55,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 05:55:55,442 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:55,442 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:55,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:55:55,442 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:55,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1013716969, now seen corresponding path program 2 times [2024-12-02 05:55:55,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:55,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835484183] [2024-12-02 05:55:55,443 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 05:55:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:55,477 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 05:55:55,477 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 05:55:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 05:55:55,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:55,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835484183] [2024-12-02 05:55:55,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835484183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:55,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:55,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:55:55,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17671933] [2024-12-02 05:55:55,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:55,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:55:55,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:55,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:55:55,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:55,657 INFO L87 Difference]: Start difference. First operand 473 states and 729 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 05:55:56,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:56,140 INFO L93 Difference]: Finished difference Result 1089 states and 1689 transitions. [2024-12-02 05:55:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:55:56,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-12-02 05:55:56,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:56,147 INFO L225 Difference]: With dead ends: 1089 [2024-12-02 05:55:56,147 INFO L226 Difference]: Without dead ends: 874 [2024-12-02 05:55:56,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:55:56,149 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 649 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 3967 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:56,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 3967 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:55:56,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-12-02 05:55:56,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 830. [2024-12-02 05:55:56,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 645 states have (on average 1.5984496124031007) internal successors, (1031), 653 states have internal predecessors, (1031), 133 states have call successors, (133), 51 states have call predecessors, (133), 51 states have return successors, (148), 128 states have call predecessors, (148), 132 states have call successors, (148) [2024-12-02 05:55:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1312 transitions. [2024-12-02 05:55:56,202 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1312 transitions. Word has length 160 [2024-12-02 05:55:56,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:56,202 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1312 transitions. [2024-12-02 05:55:56,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 05:55:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1312 transitions. [2024-12-02 05:55:56,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 05:55:56,209 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:56,209 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:56,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:55:56,209 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:56,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:56,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1248000606, now seen corresponding path program 1 times [2024-12-02 05:55:56,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:56,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598002445] [2024-12-02 05:55:56,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:56,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 05:55:56,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:56,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598002445] [2024-12-02 05:55:56,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598002445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:56,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:56,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:55:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929296670] [2024-12-02 05:55:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:56,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:55:56,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:56,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:55:56,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:55:56,422 INFO L87 Difference]: Start difference. First operand 830 states and 1312 transitions. Second operand has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 05:55:56,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:56,483 INFO L93 Difference]: Finished difference Result 1629 states and 2584 transitions. [2024-12-02 05:55:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:55:56,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 180 [2024-12-02 05:55:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:56,489 INFO L225 Difference]: With dead ends: 1629 [2024-12-02 05:55:56,489 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 05:55:56,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:55:56,491 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 1 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:56,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2412 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 05:55:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-12-02 05:55:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 647 states have (on average 1.5965996908809892) internal successors, (1033), 657 states have internal predecessors, (1033), 133 states have call successors, (133), 51 states have call predecessors, (133), 53 states have return successors, (151), 128 states have call predecessors, (151), 132 states have call successors, (151) [2024-12-02 05:55:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1317 transitions. [2024-12-02 05:55:56,521 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1317 transitions. Word has length 180 [2024-12-02 05:55:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:56,521 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1317 transitions. [2024-12-02 05:55:56,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 05:55:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1317 transitions. [2024-12-02 05:55:56,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 05:55:56,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:56,525 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:56,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:55:56,525 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:56,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:56,525 INFO L85 PathProgramCache]: Analyzing trace with hash 665454772, now seen corresponding path program 1 times [2024-12-02 05:55:56,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:56,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816213444] [2024-12-02 05:55:56,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:56,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 05:55:56,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816213444] [2024-12-02 05:55:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816213444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:56,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:55:56,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304155995] [2024-12-02 05:55:56,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:56,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:55:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:56,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:55:56,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:56,679 INFO L87 Difference]: Start difference. First operand 834 states and 1317 transitions. Second operand has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 05:55:56,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:56,823 INFO L93 Difference]: Finished difference Result 1628 states and 2577 transitions. [2024-12-02 05:55:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:55:56,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 181 [2024-12-02 05:55:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:56,828 INFO L225 Difference]: With dead ends: 1628 [2024-12-02 05:55:56,829 INFO L226 Difference]: Without dead ends: 838 [2024-12-02 05:55:56,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:55:56,831 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 7 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4143 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:56,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4143 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:55:56,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-12-02 05:55:56,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 836. [2024-12-02 05:55:56,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 649 states have (on average 1.5947611710323575) internal successors, (1035), 658 states have internal predecessors, (1035), 133 states have call successors, (133), 52 states have call predecessors, (133), 53 states have return successors, (149), 128 states have call predecessors, (149), 132 states have call successors, (149) [2024-12-02 05:55:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1317 transitions. [2024-12-02 05:55:56,870 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1317 transitions. Word has length 181 [2024-12-02 05:55:56,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:56,870 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1317 transitions. [2024-12-02 05:55:56,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 05:55:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1317 transitions. [2024-12-02 05:55:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 05:55:56,874 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:56,874 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:56,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:55:56,874 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:56,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2021962515, now seen corresponding path program 1 times [2024-12-02 05:55:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:56,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60148057] [2024-12-02 05:55:56,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 05:55:57,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60148057] [2024-12-02 05:55:57,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60148057] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303331234] [2024-12-02 05:55:57,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:57,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:57,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:57,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:57,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 05:55:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:57,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 05:55:57,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 05:55:57,400 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:55:57,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303331234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:57,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:55:57,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 05:55:57,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879285991] [2024-12-02 05:55:57,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:57,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:55:57,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:57,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:55:57,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:57,402 INFO L87 Difference]: Start difference. First operand 836 states and 1317 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 05:55:57,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:57,480 INFO L93 Difference]: Finished difference Result 1420 states and 2213 transitions. [2024-12-02 05:55:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:55:57,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2024-12-02 05:55:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:57,486 INFO L225 Difference]: With dead ends: 1420 [2024-12-02 05:55:57,486 INFO L226 Difference]: Without dead ends: 842 [2024-12-02 05:55:57,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:57,489 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 1 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:57,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2402 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-12-02 05:55:57,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 838. [2024-12-02 05:55:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 650 states have (on average 1.593846153846154) internal successors, (1036), 660 states have internal predecessors, (1036), 133 states have call successors, (133), 52 states have call predecessors, (133), 54 states have return successors, (152), 128 states have call predecessors, (152), 132 states have call successors, (152) [2024-12-02 05:55:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1321 transitions. [2024-12-02 05:55:57,534 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1321 transitions. Word has length 164 [2024-12-02 05:55:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:57,534 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1321 transitions. [2024-12-02 05:55:57,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 05:55:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1321 transitions. [2024-12-02 05:55:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 05:55:57,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:57,539 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:57,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 05:55:57,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 05:55:57,740 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:57,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:57,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1409062311, now seen corresponding path program 1 times [2024-12-02 05:55:57,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:57,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805853483] [2024-12-02 05:55:57,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:57,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 05:55:57,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805853483] [2024-12-02 05:55:57,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805853483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:57,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:57,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:55:57,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254028315] [2024-12-02 05:55:57,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:57,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:55:57,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:57,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:55:57,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:55:57,920 INFO L87 Difference]: Start difference. First operand 838 states and 1321 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 05:55:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:58,058 INFO L93 Difference]: Finished difference Result 1645 states and 2601 transitions. [2024-12-02 05:55:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:55:58,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 163 [2024-12-02 05:55:58,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:58,063 INFO L225 Difference]: With dead ends: 1645 [2024-12-02 05:55:58,063 INFO L226 Difference]: Without dead ends: 848 [2024-12-02 05:55:58,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:55:58,065 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 5 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:58,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:55:58,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-12-02 05:55:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 846. [2024-12-02 05:55:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 656 states have (on average 1.5884146341463414) internal successors, (1042), 667 states have internal predecessors, (1042), 133 states have call successors, (133), 53 states have call predecessors, (133), 56 states have return successors, (158), 128 states have call predecessors, (158), 132 states have call successors, (158) [2024-12-02 05:55:58,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1333 transitions. [2024-12-02 05:55:58,093 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1333 transitions. Word has length 163 [2024-12-02 05:55:58,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:58,093 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1333 transitions. [2024-12-02 05:55:58,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 05:55:58,093 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1333 transitions. [2024-12-02 05:55:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 05:55:58,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:58,097 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:58,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:55:58,097 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:58,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 711159424, now seen corresponding path program 1 times [2024-12-02 05:55:58,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:58,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891173011] [2024-12-02 05:55:58,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:58,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 05:55:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:58,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891173011] [2024-12-02 05:55:58,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891173011] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:55:58,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555957341] [2024-12-02 05:55:58,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:58,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:55:58,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:55:58,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:55:58,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 05:55:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:58,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:55:58,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:55:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 05:55:58,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:55:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 05:55:58,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555957341] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:55:58,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:55:58,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2024-12-02 05:55:58,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247644413] [2024-12-02 05:55:58,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:55:58,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:55:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:58,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:55:58,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:55:58,739 INFO L87 Difference]: Start difference. First operand 846 states and 1333 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 05:55:59,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:59,002 INFO L93 Difference]: Finished difference Result 2083 states and 3393 transitions. [2024-12-02 05:55:59,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:55:59,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 185 [2024-12-02 05:55:59,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:59,013 INFO L225 Difference]: With dead ends: 2083 [2024-12-02 05:55:59,014 INFO L226 Difference]: Without dead ends: 1492 [2024-12-02 05:55:59,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:55:59,017 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 428 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:59,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 4679 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:55:59,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-12-02 05:55:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1456. [2024-12-02 05:55:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1147 states have (on average 1.6451612903225807) internal successors, (1887), 1150 states have internal predecessors, (1887), 256 states have call successors, (256), 52 states have call predecessors, (256), 52 states have return successors, (295), 256 states have call predecessors, (295), 255 states have call successors, (295) [2024-12-02 05:55:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2438 transitions. [2024-12-02 05:55:59,106 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2438 transitions. Word has length 185 [2024-12-02 05:55:59,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:59,106 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2438 transitions. [2024-12-02 05:55:59,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 05:55:59,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2438 transitions. [2024-12-02 05:55:59,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 05:55:59,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:59,115 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:59,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 05:55:59,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 05:55:59,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:59,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:59,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1028636559, now seen corresponding path program 1 times [2024-12-02 05:55:59,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:59,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454599555] [2024-12-02 05:55:59,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:59,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 05:55:59,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:59,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454599555] [2024-12-02 05:55:59,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454599555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:59,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:59,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:55:59,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961308978] [2024-12-02 05:55:59,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:59,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:55:59,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:59,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:55:59,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:55:59,399 INFO L87 Difference]: Start difference. First operand 1456 states and 2438 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:55:59,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:59,465 INFO L93 Difference]: Finished difference Result 3474 states and 5903 transitions. [2024-12-02 05:55:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:55:59,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-12-02 05:55:59,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:59,478 INFO L225 Difference]: With dead ends: 3474 [2024-12-02 05:55:59,478 INFO L226 Difference]: Without dead ends: 2091 [2024-12-02 05:55:59,483 INFO L434 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 [2024-12-02 05:55:59,484 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 124 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:59,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1233 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:59,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2024-12-02 05:55:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2081. [2024-12-02 05:55:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 1645 states have (on average 1.6553191489361703) internal successors, (2723), 1642 states have internal predecessors, (2723), 383 states have call successors, (383), 52 states have call predecessors, (383), 52 states have return successors, (445), 389 states have call predecessors, (445), 382 states have call successors, (445) [2024-12-02 05:55:59,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 3551 transitions. [2024-12-02 05:55:59,588 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 3551 transitions. Word has length 190 [2024-12-02 05:55:59,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:59,588 INFO L471 AbstractCegarLoop]: Abstraction has 2081 states and 3551 transitions. [2024-12-02 05:55:59,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:55:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 3551 transitions. [2024-12-02 05:55:59,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 05:55:59,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:59,601 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:59,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:55:59,601 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:59,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:59,602 INFO L85 PathProgramCache]: Analyzing trace with hash -296914026, now seen corresponding path program 1 times [2024-12-02 05:55:59,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:59,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974128982] [2024-12-02 05:55:59,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:59,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:55:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:55:59,682 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 05:55:59,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:55:59,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974128982] [2024-12-02 05:55:59,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974128982] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:55:59,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:55:59,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:55:59,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235597583] [2024-12-02 05:55:59,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:55:59,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:55:59,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:55:59,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:55:59,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:55:59,684 INFO L87 Difference]: Start difference. First operand 2081 states and 3551 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-12-02 05:55:59,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:55:59,772 INFO L93 Difference]: Finished difference Result 5244 states and 9044 transitions. [2024-12-02 05:55:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:55:59,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 172 [2024-12-02 05:55:59,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:55:59,794 INFO L225 Difference]: With dead ends: 5244 [2024-12-02 05:55:59,794 INFO L226 Difference]: Without dead ends: 3291 [2024-12-02 05:55:59,803 INFO L434 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 [2024-12-02 05:55:59,804 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 122 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:55:59,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:55:59,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2024-12-02 05:55:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 3281. [2024-12-02 05:55:59,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 2607 states have (on average 1.6682009973149214) internal successors, (4349), 2604 states have internal predecessors, (4349), 621 states have call successors, (621), 52 states have call predecessors, (621), 52 states have return successors, (699), 627 states have call predecessors, (699), 620 states have call successors, (699) [2024-12-02 05:55:59,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 5669 transitions. [2024-12-02 05:55:59,960 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 5669 transitions. Word has length 172 [2024-12-02 05:55:59,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:55:59,961 INFO L471 AbstractCegarLoop]: Abstraction has 3281 states and 5669 transitions. [2024-12-02 05:55:59,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-12-02 05:55:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 5669 transitions. [2024-12-02 05:55:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-12-02 05:55:59,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:55:59,981 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:55:59,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:55:59,982 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:55:59,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:55:59,982 INFO L85 PathProgramCache]: Analyzing trace with hash 19003600, now seen corresponding path program 1 times [2024-12-02 05:55:59,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:55:59,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667921684] [2024-12-02 05:55:59,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:55:59,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 05:56:00,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:00,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667921684] [2024-12-02 05:56:00,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667921684] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:00,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591905638] [2024-12-02 05:56:00,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:00,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:00,200 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:00,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 05:56:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:00,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:56:00,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-02 05:56:00,588 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:00,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591905638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:00,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:00,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 05:56:00,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074300457] [2024-12-02 05:56:00,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:00,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:00,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:00,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:00,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:00,589 INFO L87 Difference]: Start difference. First operand 3281 states and 5669 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 05:56:00,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:00,701 INFO L93 Difference]: Finished difference Result 7856 states and 13696 transitions. [2024-12-02 05:56:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 186 [2024-12-02 05:56:00,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:00,730 INFO L225 Difference]: With dead ends: 7856 [2024-12-02 05:56:00,730 INFO L226 Difference]: Without dead ends: 4917 [2024-12-02 05:56:00,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:00,742 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 118 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:00,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:00,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2024-12-02 05:56:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4907. [2024-12-02 05:56:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4907 states, 3948 states have (on average 1.674772036474164) internal successors, (6612), 3936 states have internal predecessors, (6612), 906 states have call successors, (906), 52 states have call predecessors, (906), 52 states have return successors, (1031), 921 states have call predecessors, (1031), 905 states have call successors, (1031) [2024-12-02 05:56:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4907 states to 4907 states and 8549 transitions. [2024-12-02 05:56:00,969 INFO L78 Accepts]: Start accepts. Automaton has 4907 states and 8549 transitions. Word has length 186 [2024-12-02 05:56:00,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:00,969 INFO L471 AbstractCegarLoop]: Abstraction has 4907 states and 8549 transitions. [2024-12-02 05:56:00,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 05:56:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4907 states and 8549 transitions. [2024-12-02 05:56:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 05:56:00,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:00,990 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:00,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 05:56:01,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 05:56:01,191 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:01,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:01,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1960355474, now seen corresponding path program 1 times [2024-12-02 05:56:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043922034] [2024-12-02 05:56:01,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:01,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 05:56:01,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:01,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043922034] [2024-12-02 05:56:01,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043922034] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:01,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646522027] [2024-12-02 05:56:01,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:01,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:01,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:01,407 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:01,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 05:56:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:01,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:56:01,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-02 05:56:01,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:01,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646522027] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:01,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:01,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 05:56:01,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409328448] [2024-12-02 05:56:01,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:01,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:01,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:01,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:01,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:01,841 INFO L87 Difference]: Start difference. First operand 4907 states and 8549 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 05:56:02,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:02,000 INFO L93 Difference]: Finished difference Result 11897 states and 20902 transitions. [2024-12-02 05:56:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:02,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 206 [2024-12-02 05:56:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:02,044 INFO L225 Difference]: With dead ends: 11897 [2024-12-02 05:56:02,044 INFO L226 Difference]: Without dead ends: 7596 [2024-12-02 05:56:02,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:02,059 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 116 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:02,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:02,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2024-12-02 05:56:02,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 7586. [2024-12-02 05:56:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6187 states have (on average 1.6806206562146435) internal successors, (10398), 6163 states have internal predecessors, (10398), 1346 states have call successors, (1346), 52 states have call predecessors, (1346), 52 states have return successors, (1550), 1373 states have call predecessors, (1550), 1345 states have call successors, (1550) [2024-12-02 05:56:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 13294 transitions. [2024-12-02 05:56:02,496 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 13294 transitions. Word has length 206 [2024-12-02 05:56:02,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:02,496 INFO L471 AbstractCegarLoop]: Abstraction has 7586 states and 13294 transitions. [2024-12-02 05:56:02,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 05:56:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 13294 transitions. [2024-12-02 05:56:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-02 05:56:02,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:02,530 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:02,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 05:56:02,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 05:56:02,731 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:02,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2133218511, now seen corresponding path program 1 times [2024-12-02 05:56:02,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:02,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995758332] [2024-12-02 05:56:02,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:02,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 05:56:02,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:02,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995758332] [2024-12-02 05:56:02,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995758332] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:02,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:02,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:56:02,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351183560] [2024-12-02 05:56:02,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:02,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:02,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:02,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:02,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:56:02,806 INFO L87 Difference]: Start difference. First operand 7586 states and 13294 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:56:03,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:03,073 INFO L93 Difference]: Finished difference Result 19267 states and 33967 transitions. [2024-12-02 05:56:03,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:03,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2024-12-02 05:56:03,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:03,130 INFO L225 Difference]: With dead ends: 19267 [2024-12-02 05:56:03,130 INFO L226 Difference]: Without dead ends: 12566 [2024-12-02 05:56:03,150 INFO L434 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 [2024-12-02 05:56:03,151 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 116 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:03,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1225 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:03,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12566 states. [2024-12-02 05:56:03,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12566 to 12556. [2024-12-02 05:56:03,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12556 states, 10247 states have (on average 1.6772713965062944) internal successors, (17187), 10208 states have internal predecessors, (17187), 2256 states have call successors, (2256), 52 states have call predecessors, (2256), 52 states have return successors, (2599), 2298 states have call predecessors, (2599), 2255 states have call successors, (2599) [2024-12-02 05:56:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12556 states to 12556 states and 22042 transitions. [2024-12-02 05:56:03,653 INFO L78 Accepts]: Start accepts. Automaton has 12556 states and 22042 transitions. Word has length 194 [2024-12-02 05:56:03,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:03,654 INFO L471 AbstractCegarLoop]: Abstraction has 12556 states and 22042 transitions. [2024-12-02 05:56:03,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:56:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 12556 states and 22042 transitions. [2024-12-02 05:56:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 05:56:03,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:03,702 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:03,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 05:56:03,702 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:03,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash 79267601, now seen corresponding path program 1 times [2024-12-02 05:56:03,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712419588] [2024-12-02 05:56:03,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:03,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 05:56:03,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:03,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712419588] [2024-12-02 05:56:03,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712419588] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:03,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:56:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412678647] [2024-12-02 05:56:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:03,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:03,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:03,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:56:03,809 INFO L87 Difference]: Start difference. First operand 12556 states and 22042 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-12-02 05:56:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:04,272 INFO L93 Difference]: Finished difference Result 33159 states and 58487 transitions. [2024-12-02 05:56:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:04,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 176 [2024-12-02 05:56:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:04,362 INFO L225 Difference]: With dead ends: 33159 [2024-12-02 05:56:04,362 INFO L226 Difference]: Without dead ends: 21946 [2024-12-02 05:56:04,402 INFO L434 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 [2024-12-02 05:56:04,403 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 114 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:04,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:04,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21946 states. [2024-12-02 05:56:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21946 to 21936. [2024-12-02 05:56:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21936 states, 17983 states have (on average 1.677751209475616) internal successors, (30171), 17944 states have internal predecessors, (30171), 3900 states have call successors, (3900), 52 states have call predecessors, (3900), 52 states have return successors, (4432), 3942 states have call predecessors, (4432), 3899 states have call successors, (4432) [2024-12-02 05:56:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21936 states to 21936 states and 38503 transitions. [2024-12-02 05:56:05,266 INFO L78 Accepts]: Start accepts. Automaton has 21936 states and 38503 transitions. Word has length 176 [2024-12-02 05:56:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:05,266 INFO L471 AbstractCegarLoop]: Abstraction has 21936 states and 38503 transitions. [2024-12-02 05:56:05,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-12-02 05:56:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 21936 states and 38503 transitions. [2024-12-02 05:56:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 05:56:05,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:05,331 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:05,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 05:56:05,331 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:05,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:05,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2033594117, now seen corresponding path program 1 times [2024-12-02 05:56:05,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:05,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919211395] [2024-12-02 05:56:05,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:05,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-12-02 05:56:05,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919211395] [2024-12-02 05:56:05,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919211395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:05,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:05,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:56:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595478396] [2024-12-02 05:56:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:05,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:05,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:05,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:56:05,403 INFO L87 Difference]: Start difference. First operand 21936 states and 38503 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 05:56:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:05,856 INFO L93 Difference]: Finished difference Result 39981 states and 70299 transitions. [2024-12-02 05:56:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 208 [2024-12-02 05:56:05,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:05,956 INFO L225 Difference]: With dead ends: 39981 [2024-12-02 05:56:05,956 INFO L226 Difference]: Without dead ends: 21946 [2024-12-02 05:56:06,008 INFO L434 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 [2024-12-02 05:56:06,008 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 123 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:06,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1388 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:06,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21946 states. [2024-12-02 05:56:06,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21946 to 21936. [2024-12-02 05:56:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21936 states, 17983 states have (on average 1.670021687148974) internal successors, (30032), 17944 states have internal predecessors, (30032), 3900 states have call successors, (3900), 52 states have call predecessors, (3900), 52 states have return successors, (4432), 3942 states have call predecessors, (4432), 3899 states have call successors, (4432) [2024-12-02 05:56:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21936 states to 21936 states and 38364 transitions. [2024-12-02 05:56:06,837 INFO L78 Accepts]: Start accepts. Automaton has 21936 states and 38364 transitions. Word has length 208 [2024-12-02 05:56:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:06,837 INFO L471 AbstractCegarLoop]: Abstraction has 21936 states and 38364 transitions. [2024-12-02 05:56:06,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 05:56:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 21936 states and 38364 transitions. [2024-12-02 05:56:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 05:56:06,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:06,911 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:06,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 05:56:06,912 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:06,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:06,912 INFO L85 PathProgramCache]: Analyzing trace with hash -935496811, now seen corresponding path program 1 times [2024-12-02 05:56:06,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:06,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123443226] [2024-12-02 05:56:06,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:06,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 05:56:07,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:07,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123443226] [2024-12-02 05:56:07,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123443226] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:07,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841666713] [2024-12-02 05:56:07,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:07,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:07,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:07,114 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:07,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 05:56:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:07,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:56:07,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-02 05:56:07,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:07,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841666713] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:07,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:07,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 05:56:07,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120124429] [2024-12-02 05:56:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:07,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:07,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:07,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:07,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:07,606 INFO L87 Difference]: Start difference. First operand 21936 states and 38364 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 05:56:08,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:08,449 INFO L93 Difference]: Finished difference Result 53504 states and 93465 transitions. [2024-12-02 05:56:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 209 [2024-12-02 05:56:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:08,551 INFO L225 Difference]: With dead ends: 53504 [2024-12-02 05:56:08,551 INFO L226 Difference]: Without dead ends: 34435 [2024-12-02 05:56:08,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:08,587 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 110 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:08,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1198 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34435 states. [2024-12-02 05:56:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34435 to 34425. [2024-12-02 05:56:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34425 states, 28141 states have (on average 1.6436871468675598) internal successors, (46255), 28084 states have internal predecessors, (46255), 6231 states have call successors, (6231), 52 states have call predecessors, (6231), 52 states have return successors, (7182), 6291 states have call predecessors, (7182), 6230 states have call successors, (7182) [2024-12-02 05:56:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34425 states to 34425 states and 59668 transitions. [2024-12-02 05:56:09,598 INFO L78 Accepts]: Start accepts. Automaton has 34425 states and 59668 transitions. Word has length 209 [2024-12-02 05:56:09,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:09,598 INFO L471 AbstractCegarLoop]: Abstraction has 34425 states and 59668 transitions. [2024-12-02 05:56:09,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 05:56:09,598 INFO L276 IsEmpty]: Start isEmpty. Operand 34425 states and 59668 transitions. [2024-12-02 05:56:09,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-12-02 05:56:09,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:09,681 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:09,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 05:56:09,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:09,881 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:09,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:09,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2122290099, now seen corresponding path program 1 times [2024-12-02 05:56:09,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:09,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533017799] [2024-12-02 05:56:09,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:09,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 05:56:10,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533017799] [2024-12-02 05:56:10,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533017799] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572243223] [2024-12-02 05:56:10,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:10,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:10,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:10,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:10,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 05:56:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:10,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:56:10,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-02 05:56:10,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:10,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572243223] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:10,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:10,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 05:56:10,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716324173] [2024-12-02 05:56:10,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:10,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:10,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:10,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:10,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:10,432 INFO L87 Difference]: Start difference. First operand 34425 states and 59668 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 05:56:11,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:11,361 INFO L93 Difference]: Finished difference Result 92961 states and 161674 transitions. [2024-12-02 05:56:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:11,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2024-12-02 05:56:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:11,692 INFO L225 Difference]: With dead ends: 92961 [2024-12-02 05:56:11,692 INFO L226 Difference]: Without dead ends: 62172 [2024-12-02 05:56:11,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:11,760 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 108 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:11,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62172 states. [2024-12-02 05:56:13,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62172 to 62162. [2024-12-02 05:56:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62162 states, 51078 states have (on average 1.639218450213399) internal successors, (83728), 51000 states have internal predecessors, (83728), 11031 states have call successors, (11031), 52 states have call predecessors, (11031), 52 states have return successors, (12789), 11112 states have call predecessors, (12789), 11030 states have call successors, (12789) [2024-12-02 05:56:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62162 states to 62162 states and 107548 transitions. [2024-12-02 05:56:14,068 INFO L78 Accepts]: Start accepts. Automaton has 62162 states and 107548 transitions. Word has length 210 [2024-12-02 05:56:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:14,068 INFO L471 AbstractCegarLoop]: Abstraction has 62162 states and 107548 transitions. [2024-12-02 05:56:14,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-12-02 05:56:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 62162 states and 107548 transitions. [2024-12-02 05:56:14,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 05:56:14,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:14,193 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:14,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 05:56:14,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:14,394 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:14,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:14,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1112326763, now seen corresponding path program 1 times [2024-12-02 05:56:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:14,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579949959] [2024-12-02 05:56:14,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 05:56:14,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579949959] [2024-12-02 05:56:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579949959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:14,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:14,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:56:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620690904] [2024-12-02 05:56:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:14,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:14,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:14,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:56:14,457 INFO L87 Difference]: Start difference. First operand 62162 states and 107548 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:56:16,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:16,897 INFO L93 Difference]: Finished difference Result 172445 states and 298618 transitions. [2024-12-02 05:56:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:16,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2024-12-02 05:56:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:17,236 INFO L225 Difference]: With dead ends: 172445 [2024-12-02 05:56:17,236 INFO L226 Difference]: Without dead ends: 115636 [2024-12-02 05:56:17,338 INFO L434 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 [2024-12-02 05:56:17,339 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 108 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:17,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1217 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115636 states. [2024-12-02 05:56:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115636 to 115626. [2024-12-02 05:56:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115626 states, 95522 states have (on average 1.6335922614685623) internal successors, (156044), 95444 states have internal predecessors, (156044), 20051 states have call successors, (20051), 52 states have call predecessors, (20051), 52 states have return successors, (22873), 20132 states have call predecessors, (22873), 20050 states have call successors, (22873) [2024-12-02 05:56:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115626 states to 115626 states and 198968 transitions. [2024-12-02 05:56:22,102 INFO L78 Accepts]: Start accepts. Automaton has 115626 states and 198968 transitions. Word has length 198 [2024-12-02 05:56:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:22,103 INFO L471 AbstractCegarLoop]: Abstraction has 115626 states and 198968 transitions. [2024-12-02 05:56:22,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 05:56:22,103 INFO L276 IsEmpty]: Start isEmpty. Operand 115626 states and 198968 transitions. [2024-12-02 05:56:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 05:56:22,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:22,303 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:22,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 05:56:22,303 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:22,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash 178698896, now seen corresponding path program 1 times [2024-12-02 05:56:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774000020] [2024-12-02 05:56:22,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:22,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 05:56:22,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774000020] [2024-12-02 05:56:22,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774000020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:22,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:22,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:56:22,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798431349] [2024-12-02 05:56:22,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:22,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:56:22,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:22,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:56:22,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:56:22,370 INFO L87 Difference]: Start difference. First operand 115626 states and 198968 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2024-12-02 05:56:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:26,701 INFO L93 Difference]: Finished difference Result 217593 states and 375129 transitions. [2024-12-02 05:56:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:56:26,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 180 [2024-12-02 05:56:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:27,371 INFO L225 Difference]: With dead ends: 217593 [2024-12-02 05:56:27,371 INFO L226 Difference]: Without dead ends: 217260 [2024-12-02 05:56:27,437 INFO L434 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 [2024-12-02 05:56:27,438 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 103 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:27,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1222 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:27,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217260 states. [2024-12-02 05:56:33,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217260 to 217250. [2024-12-02 05:56:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217250 states, 180534 states have (on average 1.6270120863660031) internal successors, (293731), 180432 states have internal predecessors, (293731), 36663 states have call successors, (36663), 52 states have call predecessors, (36663), 52 states have return successors, (42092), 36768 states have call predecessors, (42092), 36662 states have call successors, (42092) [2024-12-02 05:56:34,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217250 states to 217250 states and 372486 transitions. [2024-12-02 05:56:34,836 INFO L78 Accepts]: Start accepts. Automaton has 217250 states and 372486 transitions. Word has length 180 [2024-12-02 05:56:34,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:34,837 INFO L471 AbstractCegarLoop]: Abstraction has 217250 states and 372486 transitions. [2024-12-02 05:56:34,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2024-12-02 05:56:34,837 INFO L276 IsEmpty]: Start isEmpty. Operand 217250 states and 372486 transitions. [2024-12-02 05:56:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-02 05:56:35,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:35,110 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:35,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 05:56:35,110 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:35,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:35,110 INFO L85 PathProgramCache]: Analyzing trace with hash -432224167, now seen corresponding path program 1 times [2024-12-02 05:56:35,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:35,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593902094] [2024-12-02 05:56:35,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:35,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 05:56:35,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:35,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593902094] [2024-12-02 05:56:35,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593902094] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:35,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574188757] [2024-12-02 05:56:35,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:35,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:35,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:35,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:35,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 05:56:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:35,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 1331 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:56:35,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 05:56:35,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:35,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574188757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:35,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:35,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-12-02 05:56:35,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510638520] [2024-12-02 05:56:35,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:35,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:56:35,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:35,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:56:35,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:56:35,868 INFO L87 Difference]: Start difference. First operand 217250 states and 372486 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 05:56:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:40,149 INFO L93 Difference]: Finished difference Result 320056 states and 547413 transitions. [2024-12-02 05:56:40,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:56:40,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 194 [2024-12-02 05:56:40,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:40,967 INFO L225 Difference]: With dead ends: 320056 [2024-12-02 05:56:40,967 INFO L226 Difference]: Without dead ends: 214306 [2024-12-02 05:56:41,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:56:41,385 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 566 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:41,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1574 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:56:41,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214306 states. [2024-12-02 05:56:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214306 to 214306. [2024-12-02 05:56:47,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214306 states, 178094 states have (on average 1.6277639898031377) internal successors, (289895), 178011 states have internal predecessors, (289895), 36158 states have call successors, (36158), 53 states have call predecessors, (36158), 53 states have return successors, (39440), 36244 states have call predecessors, (39440), 36157 states have call successors, (39440) [2024-12-02 05:56:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214306 states to 214306 states and 365493 transitions. [2024-12-02 05:56:48,313 INFO L78 Accepts]: Start accepts. Automaton has 214306 states and 365493 transitions. Word has length 194 [2024-12-02 05:56:48,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:48,314 INFO L471 AbstractCegarLoop]: Abstraction has 214306 states and 365493 transitions. [2024-12-02 05:56:48,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 3 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 05:56:48,314 INFO L276 IsEmpty]: Start isEmpty. Operand 214306 states and 365493 transitions. [2024-12-02 05:56:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 05:56:48,592 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:48,592 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:48,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 05:56:48,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:48,793 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:48,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:48,793 INFO L85 PathProgramCache]: Analyzing trace with hash -919681622, now seen corresponding path program 1 times [2024-12-02 05:56:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:48,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230403094] [2024-12-02 05:56:48,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:48,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:48,895 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 05:56:48,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:48,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230403094] [2024-12-02 05:56:48,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230403094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:48,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:48,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:56:48,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421476649] [2024-12-02 05:56:48,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:48,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:56:48,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:48,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:56:48,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:56:48,896 INFO L87 Difference]: Start difference. First operand 214306 states and 365493 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 05:56:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:57,228 INFO L93 Difference]: Finished difference Result 416605 states and 713269 transitions. [2024-12-02 05:56:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 05:56:57,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 200 [2024-12-02 05:56:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:58,489 INFO L225 Difference]: With dead ends: 416605 [2024-12-02 05:56:58,490 INFO L226 Difference]: Without dead ends: 416315 [2024-12-02 05:56:58,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:56:58,613 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 558 mSDsluCounter, 2446 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:58,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 3115 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 05:56:58,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416315 states. [2024-12-02 05:57:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416315 to 416307. [2024-12-02 05:57:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416307 states, 346084 states have (on average 1.6301764889448804) internal successors, (564178), 345896 states have internal predecessors, (564178), 70119 states have call successors, (70119), 102 states have call predecessors, (70119), 103 states have return successors, (77573), 70314 states have call predecessors, (77573), 70117 states have call successors, (77573) [2024-12-02 05:57:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416307 states to 416307 states and 711870 transitions. [2024-12-02 05:57:11,063 INFO L78 Accepts]: Start accepts. Automaton has 416307 states and 711870 transitions. Word has length 200 [2024-12-02 05:57:11,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:11,064 INFO L471 AbstractCegarLoop]: Abstraction has 416307 states and 711870 transitions. [2024-12-02 05:57:11,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 05:57:11,064 INFO L276 IsEmpty]: Start isEmpty. Operand 416307 states and 711870 transitions. [2024-12-02 05:57:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 05:57:12,721 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:12,721 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:12,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 05:57:12,721 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:12,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:12,721 INFO L85 PathProgramCache]: Analyzing trace with hash 711897082, now seen corresponding path program 1 times [2024-12-02 05:57:12,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:12,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264439516] [2024-12-02 05:57:12,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 05:57:12,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:12,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264439516] [2024-12-02 05:57:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264439516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:12,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:12,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:57:12,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789132854] [2024-12-02 05:57:12,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:12,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:57:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:12,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:57:12,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:57:12,944 INFO L87 Difference]: Start difference. First operand 416307 states and 711870 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2024-12-02 05:57:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:21,099 INFO L93 Difference]: Finished difference Result 416928 states and 712759 transitions. [2024-12-02 05:57:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:57:21,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 201 [2024-12-02 05:57:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:22,773 INFO L225 Difference]: With dead ends: 416928 [2024-12-02 05:57:22,773 INFO L226 Difference]: Without dead ends: 416322 [2024-12-02 05:57:22,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:57:22,892 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 649 mSDsluCounter, 4009 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:22,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 4588 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:57:23,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416322 states. [2024-12-02 05:57:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416322 to 416322. [2024-12-02 05:57:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416322 states, 346090 states have (on average 1.6301424484960558) internal successors, (564176), 345904 states have internal predecessors, (564176), 70128 states have call successors, (70128), 103 states have call predecessors, (70128), 103 states have return successors, (77581), 70320 states have call predecessors, (77581), 70122 states have call successors, (77581) [2024-12-02 05:57:37,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416322 states to 416322 states and 711885 transitions. [2024-12-02 05:57:37,698 INFO L78 Accepts]: Start accepts. Automaton has 416322 states and 711885 transitions. Word has length 201 [2024-12-02 05:57:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:37,699 INFO L471 AbstractCegarLoop]: Abstraction has 416322 states and 711885 transitions. [2024-12-02 05:57:37,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2024-12-02 05:57:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 416322 states and 711885 transitions. [2024-12-02 05:57:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 05:57:38,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:38,101 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:38,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 05:57:38,102 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:38,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:38,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1096989133, now seen corresponding path program 1 times [2024-12-02 05:57:38,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:38,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399048723] [2024-12-02 05:57:38,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:38,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 05:57:38,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:38,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399048723] [2024-12-02 05:57:38,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399048723] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:38,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65102200] [2024-12-02 05:57:38,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:38,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:38,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:38,261 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:38,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_704b6043-8348-4f5a-aa99-06bb1d377e5e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 05:57:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:38,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 05:57:38,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 05:57:38,702 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:38,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65102200] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:38,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:38,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-12-02 05:57:38,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009288661] [2024-12-02 05:57:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:38,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 05:57:38,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:38,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 05:57:38,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-12-02 05:57:38,703 INFO L87 Difference]: Start difference. First operand 416322 states and 711885 transitions. Second operand has 7 states, 6 states have (on average 23.5) internal successors, (141), 7 states have internal predecessors, (141), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)