./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product34.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_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/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_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/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_f9e7481e-b5b6-4cdc-901d-be699df75f4d/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 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:29:32,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:29:32,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:29:32,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:29:32,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:29:32,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:29:32,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:29:32,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:29:32,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:29:32,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:29:32,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:29:32,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:29:32,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:29:32,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:29:32,423 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:29:32,424 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:29:32,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:29:32,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:29:32,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:29:32,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:29:32,426 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_f9e7481e-b5b6-4cdc-901d-be699df75f4d/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 -> 39fe77adb61a1e466f06fcf9920e7f42d562f22740249d3a797ea504e0f3c31a [2024-12-02 12:29:32,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:29:32,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:29:32,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:29:32,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:29:32,664 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:29:32,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2024-12-02 12:29:35,268 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/data/b3d3c8215/31bead8e2f934f12ae3e2673d2395be7/FLAG69d72a8d4 [2024-12-02 12:29:35,564 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:29:35,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2024-12-02 12:29:35,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/data/b3d3c8215/31bead8e2f934f12ae3e2673d2395be7/FLAG69d72a8d4 [2024-12-02 12:29:35,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/data/b3d3c8215/31bead8e2f934f12ae3e2673d2395be7 [2024-12-02 12:29:35,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:29:35,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:29:35,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:29:35,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:29:35,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:29:35,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:29:35" (1/1) ... [2024-12-02 12:29:35,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afe53dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:35, skipping insertion in model container [2024-12-02 12:29:35,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:29:35" (1/1) ... [2024-12-02 12:29:35,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:29:36,279 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_f9e7481e-b5b6-4cdc-901d-be699df75f4d/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2024-12-02 12:29:36,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:29:36,352 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:29:36,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-12-02 12:29:36,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1128] [2024-12-02 12:29:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1288] [2024-12-02 12:29:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1517] [2024-12-02 12:29:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1534] [2024-12-02 12:29:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1936] [2024-12-02 12:29:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1974] [2024-12-02 12:29:36,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2380] [2024-12-02 12:29:36,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2412] [2024-12-02 12:29:36,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2421] [2024-12-02 12:29:36,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2787] [2024-12-02 12:29:36,426 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_f9e7481e-b5b6-4cdc-901d-be699df75f4d/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c[51595,51608] [2024-12-02 12:29:36,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:29:36,476 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:29:36,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36 WrapperNode [2024-12-02 12:29:36,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:29:36,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:29:36,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:29:36,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:29:36,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,542 INFO L138 Inliner]: procedures = 134, calls = 220, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1094 [2024-12-02 12:29:36,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:29:36,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:29:36,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:29:36,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:29:36,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,576 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 12:29:36,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:29:36,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:29:36,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:29:36,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:29:36,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (1/1) ... [2024-12-02 12:29:36,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:29:36,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:36,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:29:36,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:29:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-12-02 12:29:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-12-02 12:29:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-12-02 12:29:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-12-02 12:29:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-12-02 12:29:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-12-02 12:29:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-12-02 12:29:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-12-02 12:29:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-12-02 12:29:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-12-02 12:29:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-12-02 12:29:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-12-02 12:29:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-12-02 12:29:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-12-02 12:29:36,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:29:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:29:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:29:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:29:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-12-02 12:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-12-02 12:29:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-12-02 12:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-12-02 12:29:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:29:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:29:36,879 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:29:36,880 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:29:37,794 INFO L? ?]: Removed 582 outVars from TransFormulas that were not future-live. [2024-12-02 12:29:37,794 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:29:37,811 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:29:37,812 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:29:37,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:37 BoogieIcfgContainer [2024-12-02 12:29:37,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:29:37,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:29:37,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:29:37,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:29:37,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:29:35" (1/3) ... [2024-12-02 12:29:37,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36814b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:29:37, skipping insertion in model container [2024-12-02 12:29:37,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:36" (2/3) ... [2024-12-02 12:29:37,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36814b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:29:37, skipping insertion in model container [2024-12-02 12:29:37,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:37" (3/3) ... [2024-12-02 12:29:37,821 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product34.cil.c [2024-12-02 12:29:37,832 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:29:37,834 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product34.cil.c that has 30 procedures, 452 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:29:37,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:29:37,898 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;@64671fcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:29:37,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:29:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 452 states, 348 states have (on average 1.5344827586206897) internal successors, (534), 353 states have internal predecessors, (534), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 12:29:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 12:29:37,921 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:37,922 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] [2024-12-02 12:29:37,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:37,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:37,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1756150356, now seen corresponding path program 1 times [2024-12-02 12:29:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:37,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517515488] [2024-12-02 12:29:37,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-12-02 12:29:38,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:38,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517515488] [2024-12-02 12:29:38,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517515488] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:29:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781615305] [2024-12-02 12:29:38,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:38,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:38,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:38,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:29:38,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:29:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:38,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 12:29:38,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:29:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 12:29:38,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:29:38,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781615305] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:38,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:29:38,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 12:29:38,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812729420] [2024-12-02 12:29:38,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:38,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:38,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:39,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:39,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:29:39,005 INFO L87 Difference]: Start difference. First operand has 452 states, 348 states have (on average 1.5344827586206897) internal successors, (534), 353 states have internal predecessors, (534), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 12:29:39,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:39,085 INFO L93 Difference]: Finished difference Result 714 states and 1056 transitions. [2024-12-02 12:29:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:39,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 170 [2024-12-02 12:29:39,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:39,098 INFO L225 Difference]: With dead ends: 714 [2024-12-02 12:29:39,098 INFO L226 Difference]: Without dead ends: 447 [2024-12-02 12:29:39,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 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 12:29:39,105 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 1 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1345 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 12:29:39,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1345 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:39,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-12-02 12:29:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2024-12-02 12:29:39,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 343 states have (on average 1.5276967930029155) internal successors, (524), 347 states have internal predecessors, (524), 73 states have call successors, (73), 29 states have call predecessors, (73), 29 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 12:29:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 669 transitions. [2024-12-02 12:29:39,174 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 669 transitions. Word has length 170 [2024-12-02 12:29:39,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:39,175 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 669 transitions. [2024-12-02 12:29:39,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 12:29:39,176 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 669 transitions. [2024-12-02 12:29:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 12:29:39,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:39,182 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 12:29:39,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:29:39,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:29:39,383 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:39,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1843734169, now seen corresponding path program 1 times [2024-12-02 12:29:39,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064986258] [2024-12-02 12:29:39,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:39,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:39,782 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 12:29:39,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:39,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064986258] [2024-12-02 12:29:39,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064986258] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:29:39,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150343606] [2024-12-02 12:29:39,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:39,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:39,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:39,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:29:39,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:29:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:40,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:29:40,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:29:40,233 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 12:29:40,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:29:40,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150343606] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:40,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:29:40,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 12:29:40,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341039990] [2024-12-02 12:29:40,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:40,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:40,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:40,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:40,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:29:40,236 INFO L87 Difference]: Start difference. First operand 446 states and 669 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 12:29:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:40,295 INFO L93 Difference]: Finished difference Result 940 states and 1430 transitions. [2024-12-02 12:29:40,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:40,295 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 12:29:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:40,300 INFO L225 Difference]: With dead ends: 940 [2024-12-02 12:29:40,300 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 12:29:40,302 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 12:29:40,303 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 134 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1304 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 12:29:40,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1304 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:40,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 12:29:40,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 512. [2024-12-02 12:29:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 395 states have (on average 1.549367088607595) internal successors, (612), 399 states have internal predecessors, (612), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 12:29:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 785 transitions. [2024-12-02 12:29:40,337 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 785 transitions. Word has length 175 [2024-12-02 12:29:40,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:40,338 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 785 transitions. [2024-12-02 12:29:40,338 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 12:29:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 785 transitions. [2024-12-02 12:29:40,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 12:29:40,342 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:40,342 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 12:29:40,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:29:40,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:40,543 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:40,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:40,544 INFO L85 PathProgramCache]: Analyzing trace with hash -519478264, now seen corresponding path program 1 times [2024-12-02 12:29:40,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:40,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219065337] [2024-12-02 12:29:40,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:40,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:40,785 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 12:29:40,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:40,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219065337] [2024-12-02 12:29:40,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219065337] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:29:40,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475686700] [2024-12-02 12:29:40,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:40,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:40,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:40,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:29:40,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:29:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:41,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:29:41,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:29:41,207 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 12:29:41,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:29:41,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475686700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:41,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:29:41,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 12:29:41,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328991754] [2024-12-02 12:29:41,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:41,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:41,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:41,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:41,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:41,209 INFO L87 Difference]: Start difference. First operand 512 states and 785 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 12:29:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:41,284 INFO L93 Difference]: Finished difference Result 1015 states and 1560 transitions. [2024-12-02 12:29:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:41,285 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 12:29:41,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:41,289 INFO L225 Difference]: With dead ends: 1015 [2024-12-02 12:29:41,289 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 12:29:41,292 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 12:29:41,292 INFO L435 NwaCegarLoop]: 660 mSDtfsCounter, 2 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2629 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 12:29:41,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2629 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 12:29:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-12-02 12:29:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 396 states have (on average 1.547979797979798) internal successors, (613), 401 states have internal predecessors, (613), 87 states have call successors, (87), 29 states have call predecessors, (87), 30 states have return successors, (88), 85 states have call predecessors, (88), 86 states have call successors, (88) [2024-12-02 12:29:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 788 transitions. [2024-12-02 12:29:41,321 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 788 transitions. Word has length 157 [2024-12-02 12:29:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:41,321 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 788 transitions. [2024-12-02 12:29:41,321 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 12:29:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 788 transitions. [2024-12-02 12:29:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 12:29:41,326 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:41,326 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:29:41,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:29:41,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:41,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:41,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:41,527 INFO L85 PathProgramCache]: Analyzing trace with hash -893845606, now seen corresponding path program 1 times [2024-12-02 12:29:41,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:41,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390435697] [2024-12-02 12:29:41,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:41,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 12:29:41,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:41,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390435697] [2024-12-02 12:29:41,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390435697] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:29:41,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104086816] [2024-12-02 12:29:41,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:41,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:41,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:41,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:29:41,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:29:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:42,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:29:42,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:29:42,125 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 12:29:42,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:29:42,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104086816] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:29:42,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-12-02 12:29:42,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840320862] [2024-12-02 12:29:42,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:42,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:42,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:29:42,128 INFO L87 Difference]: Start difference. First operand 514 states and 788 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 12:29:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:42,197 INFO L93 Difference]: Finished difference Result 1017 states and 1565 transitions. [2024-12-02 12:29:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:42,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-12-02 12:29:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:42,200 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 12:29:42,200 INFO L226 Difference]: Without dead ends: 516 [2024-12-02 12:29:42,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 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 12:29:42,202 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 2 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2615 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 12:29:42,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2615 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-12-02 12:29:42,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2024-12-02 12:29:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 397 states have (on average 1.5465994962216625) internal successors, (614), 403 states have internal predecessors, (614), 87 states have call successors, (87), 29 states have call predecessors, (87), 31 states have return successors, (93), 85 states have call predecessors, (93), 86 states have call successors, (93) [2024-12-02 12:29:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 794 transitions. [2024-12-02 12:29:42,223 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 794 transitions. Word has length 158 [2024-12-02 12:29:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:42,223 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 794 transitions. [2024-12-02 12:29:42,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 12:29:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 794 transitions. [2024-12-02 12:29:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 12:29:42,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:42,226 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 12:29:42,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:29:42,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:42,427 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:42,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:42,427 INFO L85 PathProgramCache]: Analyzing trace with hash 116652107, now seen corresponding path program 1 times [2024-12-02 12:29:42,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:42,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562707370] [2024-12-02 12:29:42,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:42,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:42,632 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 12:29:42,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:42,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562707370] [2024-12-02 12:29:42,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562707370] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:42,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904522635] [2024-12-02 12:29:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:42,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:42,635 INFO L87 Difference]: Start difference. First operand 516 states and 794 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 12:29:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:42,701 INFO L93 Difference]: Finished difference Result 1009 states and 1556 transitions. [2024-12-02 12:29:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:42,702 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 12:29:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:42,706 INFO L225 Difference]: With dead ends: 1009 [2024-12-02 12:29:42,706 INFO L226 Difference]: Without dead ends: 516 [2024-12-02 12:29:42,707 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 12:29:42,708 INFO L435 NwaCegarLoop]: 661 mSDtfsCounter, 2 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2633 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 12:29:42,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2633 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-12-02 12:29:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2024-12-02 12:29:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 397 states have (on average 1.5465994962216625) internal successors, (614), 403 states have internal predecessors, (614), 87 states have call successors, (87), 29 states have call predecessors, (87), 31 states have return successors, (92), 85 states have call predecessors, (92), 86 states have call successors, (92) [2024-12-02 12:29:42,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 793 transitions. [2024-12-02 12:29:42,733 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 793 transitions. Word has length 159 [2024-12-02 12:29:42,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:42,734 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 793 transitions. [2024-12-02 12:29:42,734 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 12:29:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 793 transitions. [2024-12-02 12:29:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 12:29:42,737 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:42,737 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 12:29:42,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:29:42,738 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:42,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:42,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2018831237, now seen corresponding path program 2 times [2024-12-02 12:29:42,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:42,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794052172] [2024-12-02 12:29:42,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:29:42,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:42,774 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:29:42,774 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:29:42,908 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 12:29:42,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794052172] [2024-12-02 12:29:42,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794052172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:42,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:29:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145434250] [2024-12-02 12:29:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:29:42,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:29:42,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:42,910 INFO L87 Difference]: Start difference. First operand 516 states and 793 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 12:29:43,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:43,497 INFO L93 Difference]: Finished difference Result 1202 states and 1858 transitions. [2024-12-02 12:29:43,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:29:43,497 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 12:29:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:43,504 INFO L225 Difference]: With dead ends: 1202 [2024-12-02 12:29:43,504 INFO L226 Difference]: Without dead ends: 956 [2024-12-02 12:29:43,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:29:43,507 INFO L435 NwaCegarLoop]: 698 mSDtfsCounter, 761 mSDsluCounter, 3641 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:43,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 4339 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:29:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-12-02 12:29:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 869. [2024-12-02 12:29:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 680 states have (on average 1.5911764705882352) internal successors, (1082), 688 states have internal predecessors, (1082), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (152), 133 states have call predecessors, (152), 137 states have call successors, (152) [2024-12-02 12:29:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1372 transitions. [2024-12-02 12:29:43,553 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1372 transitions. Word has length 160 [2024-12-02 12:29:43,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:43,553 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1372 transitions. [2024-12-02 12:29:43,554 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 12:29:43,554 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1372 transitions. [2024-12-02 12:29:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 12:29:43,559 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:43,559 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, 1, 1] [2024-12-02 12:29:43,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:29:43,559 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:43,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2124639667, now seen corresponding path program 1 times [2024-12-02 12:29:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:43,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982670078] [2024-12-02 12:29:43,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 12:29:43,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:43,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982670078] [2024-12-02 12:29:43,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982670078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:43,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:43,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:43,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342664392] [2024-12-02 12:29:43,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:43,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:43,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:43,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:43,762 INFO L87 Difference]: Start difference. First operand 869 states and 1372 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 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 12:29:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:43,834 INFO L93 Difference]: Finished difference Result 1717 states and 2717 transitions. [2024-12-02 12:29:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:43,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 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 162 [2024-12-02 12:29:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:43,841 INFO L225 Difference]: With dead ends: 1717 [2024-12-02 12:29:43,841 INFO L226 Difference]: Without dead ends: 871 [2024-12-02 12:29:43,844 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 12:29:43,844 INFO L435 NwaCegarLoop]: 662 mSDtfsCounter, 1 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2636 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 12:29:43,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2636 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:43,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-12-02 12:29:43,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2024-12-02 12:29:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 681 states have (on average 1.5903083700440528) internal successors, (1083), 690 states have internal predecessors, (1083), 138 states have call successors, (138), 50 states have call predecessors, (138), 51 states have return successors, (154), 133 states have call predecessors, (154), 137 states have call successors, (154) [2024-12-02 12:29:43,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1375 transitions. [2024-12-02 12:29:43,890 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1375 transitions. Word has length 162 [2024-12-02 12:29:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:43,891 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1375 transitions. [2024-12-02 12:29:43,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 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 12:29:43,891 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1375 transitions. [2024-12-02 12:29:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 12:29:43,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:43,896 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, 1, 1] [2024-12-02 12:29:43,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:29:43,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:43,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:43,897 INFO L85 PathProgramCache]: Analyzing trace with hash 169961697, now seen corresponding path program 1 times [2024-12-02 12:29:43,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:43,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204614581] [2024-12-02 12:29:43,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:43,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 12:29:44,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204614581] [2024-12-02 12:29:44,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204614581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:29:44,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387599760] [2024-12-02 12:29:44,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:29:44,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:29:44,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:44,099 INFO L87 Difference]: Start difference. First operand 871 states and 1375 transitions. Second operand has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 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 12:29:44,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:44,255 INFO L93 Difference]: Finished difference Result 1477 states and 2306 transitions. [2024-12-02 12:29:44,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:29:44,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 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 182 [2024-12-02 12:29:44,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:44,261 INFO L225 Difference]: With dead ends: 1477 [2024-12-02 12:29:44,261 INFO L226 Difference]: Without dead ends: 880 [2024-12-02 12:29:44,263 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 12:29:44,264 INFO L435 NwaCegarLoop]: 652 mSDtfsCounter, 5 mSDsluCounter, 3883 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:44,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4535 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:44,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2024-12-02 12:29:44,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 876. [2024-12-02 12:29:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 685 states have (on average 1.5883211678832116) internal successors, (1088), 694 states have internal predecessors, (1088), 138 states have call successors, (138), 51 states have call predecessors, (138), 52 states have return successors, (159), 133 states have call predecessors, (159), 137 states have call successors, (159) [2024-12-02 12:29:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1385 transitions. [2024-12-02 12:29:44,321 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1385 transitions. Word has length 182 [2024-12-02 12:29:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:44,322 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1385 transitions. [2024-12-02 12:29:44,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 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 12:29:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1385 transitions. [2024-12-02 12:29:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 12:29:44,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:44,327 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 12:29:44,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:29:44,328 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:44,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash 895520348, now seen corresponding path program 2 times [2024-12-02 12:29:44,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:44,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621662801] [2024-12-02 12:29:44,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:29:44,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:44,366 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 12:29:44,366 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:29:44,537 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 12:29:44,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621662801] [2024-12-02 12:29:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621662801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:29:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815706276] [2024-12-02 12:29:44,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:29:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:29:44,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:29:44,539 INFO L87 Difference]: Start difference. First operand 876 states and 1385 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 3 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 12:29:44,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:44,680 INFO L93 Difference]: Finished difference Result 1174 states and 1819 transitions. [2024-12-02 12:29:44,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:29:44,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 3 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 181 [2024-12-02 12:29:44,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:44,687 INFO L225 Difference]: With dead ends: 1174 [2024-12-02 12:29:44,687 INFO L226 Difference]: Without dead ends: 924 [2024-12-02 12:29:44,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:29:44,689 INFO L435 NwaCegarLoop]: 691 mSDtfsCounter, 40 mSDsluCounter, 4781 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:44,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 5472 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:44,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-12-02 12:29:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 915. [2024-12-02 12:29:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 709 states have (on average 1.5811001410437235) internal successors, (1121), 721 states have internal predecessors, (1121), 152 states have call successors, (152), 51 states have call predecessors, (152), 53 states have return successors, (177), 146 states have call predecessors, (177), 151 states have call successors, (177) [2024-12-02 12:29:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1450 transitions. [2024-12-02 12:29:44,737 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1450 transitions. Word has length 181 [2024-12-02 12:29:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:44,737 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1450 transitions. [2024-12-02 12:29:44,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 3 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 12:29:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1450 transitions. [2024-12-02 12:29:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 12:29:44,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:44,743 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 12:29:44,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:29:44,743 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:44,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1552242336, now seen corresponding path program 1 times [2024-12-02 12:29:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:44,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112726980] [2024-12-02 12:29:44,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:44,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 12:29:44,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112726980] [2024-12-02 12:29:44,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112726980] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:29:44,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374575430] [2024-12-02 12:29:44,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:29:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:29:44,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:44,953 INFO L87 Difference]: Start difference. First operand 915 states and 1450 transitions. Second operand has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 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 12:29:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:45,120 INFO L93 Difference]: Finished difference Result 1550 states and 2430 transitions. [2024-12-02 12:29:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:29:45,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 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 182 [2024-12-02 12:29:45,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:45,126 INFO L225 Difference]: With dead ends: 1550 [2024-12-02 12:29:45,126 INFO L226 Difference]: Without dead ends: 666 [2024-12-02 12:29:45,130 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 12:29:45,131 INFO L435 NwaCegarLoop]: 652 mSDtfsCounter, 7 mSDsluCounter, 3883 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4535 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 12:29:45,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4535 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:45,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-12-02 12:29:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2024-12-02 12:29:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 508 states have (on average 1.5374015748031495) internal successors, (781), 520 states have internal predecessors, (781), 113 states have call successors, (113), 41 states have call predecessors, (113), 44 states have return successors, (129), 108 states have call predecessors, (129), 111 states have call successors, (129) [2024-12-02 12:29:45,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1023 transitions. [2024-12-02 12:29:45,176 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1023 transitions. Word has length 182 [2024-12-02 12:29:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:45,176 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 1023 transitions. [2024-12-02 12:29:45,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 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 12:29:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1023 transitions. [2024-12-02 12:29:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 12:29:45,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:45,181 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 12:29:45,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:29:45,181 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:45,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash -872876133, now seen corresponding path program 1 times [2024-12-02 12:29:45,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:45,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910971672] [2024-12-02 12:29:45,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:45,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:45,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:45,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910971672] [2024-12-02 12:29:45,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910971672] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:29:45,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196035687] [2024-12-02 12:29:45,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:29:45,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:45,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:29:45,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:29:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:45,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:29:45,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:29:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:45,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:29:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:45,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196035687] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:29:45,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:29:45,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 12:29:45,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014051829] [2024-12-02 12:29:45,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:29:45,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:29:45,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:45,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:29:45,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:29:45,850 INFO L87 Difference]: Start difference. First operand 666 states and 1023 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-12-02 12:29:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:46,022 INFO L93 Difference]: Finished difference Result 1499 states and 2367 transitions. [2024-12-02 12:29:46,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:29:46,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 184 [2024-12-02 12:29:46,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:46,029 INFO L225 Difference]: With dead ends: 1499 [2024-12-02 12:29:46,029 INFO L226 Difference]: Without dead ends: 1102 [2024-12-02 12:29:46,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:29:46,032 INFO L435 NwaCegarLoop]: 717 mSDtfsCounter, 398 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:46,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 3099 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-12-02 12:29:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1078. [2024-12-02 12:29:46,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 841 states have (on average 1.6028537455410226) internal successors, (1348), 853 states have internal predecessors, (1348), 192 states have call successors, (192), 41 states have call predecessors, (192), 44 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2024-12-02 12:29:46,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1758 transitions. [2024-12-02 12:29:46,083 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1758 transitions. Word has length 184 [2024-12-02 12:29:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:46,083 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1758 transitions. [2024-12-02 12:29:46,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-12-02 12:29:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1758 transitions. [2024-12-02 12:29:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 12:29:46,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:46,089 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 12:29:46,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:29:46,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 12:29:46,290 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:46,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash -522959201, now seen corresponding path program 1 times [2024-12-02 12:29:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:46,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915411389] [2024-12-02 12:29:46,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:46,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 12:29:46,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915411389] [2024-12-02 12:29:46,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915411389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:46,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:46,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:46,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302078690] [2024-12-02 12:29:46,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:46,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:46,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:46,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:46,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:46,383 INFO L87 Difference]: Start difference. First operand 1078 states and 1758 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 12:29:46,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:46,428 INFO L93 Difference]: Finished difference Result 2503 states and 4145 transitions. [2024-12-02 12:29:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:46,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 12:29:46,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:46,437 INFO L225 Difference]: With dead ends: 2503 [2024-12-02 12:29:46,438 INFO L226 Difference]: Without dead ends: 1494 [2024-12-02 12:29:46,442 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 12:29:46,442 INFO L435 NwaCegarLoop]: 686 mSDtfsCounter, 132 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1352 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 12:29:46,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1352 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:46,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2024-12-02 12:29:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1486. [2024-12-02 12:29:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1170 states have (on average 1.6247863247863248) internal successors, (1901), 1182 states have internal predecessors, (1901), 271 states have call successors, (271), 41 states have call predecessors, (271), 44 states have return successors, (307), 266 states have call predecessors, (307), 269 states have call successors, (307) [2024-12-02 12:29:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2479 transitions. [2024-12-02 12:29:46,518 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2479 transitions. Word has length 172 [2024-12-02 12:29:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:46,518 INFO L471 AbstractCegarLoop]: Abstraction has 1486 states and 2479 transitions. [2024-12-02 12:29:46,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 12:29:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2479 transitions. [2024-12-02 12:29:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 12:29:46,526 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:46,526 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 12:29:46,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:29:46,527 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:46,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:46,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1374694098, now seen corresponding path program 1 times [2024-12-02 12:29:46,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:46,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971790341] [2024-12-02 12:29:46,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:46,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 12:29:46,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:46,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971790341] [2024-12-02 12:29:46,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971790341] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:46,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:46,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:46,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014581053] [2024-12-02 12:29:46,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:46,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:46,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:46,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:46,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:46,600 INFO L87 Difference]: Start difference. First operand 1486 states and 2479 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 12:29:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:46,659 INFO L93 Difference]: Finished difference Result 3500 states and 5890 transitions. [2024-12-02 12:29:46,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:46,660 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), 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 173 [2024-12-02 12:29:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:46,673 INFO L225 Difference]: With dead ends: 3500 [2024-12-02 12:29:46,673 INFO L226 Difference]: Without dead ends: 2134 [2024-12-02 12:29:46,679 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 12:29:46,679 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 130 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1330 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 12:29:46,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1330 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:46,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2024-12-02 12:29:46,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2126. [2024-12-02 12:29:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2126 states, 1691 states have (on average 1.641632170313424) internal successors, (2776), 1703 states have internal predecessors, (2776), 390 states have call successors, (390), 41 states have call predecessors, (390), 44 states have return successors, (426), 385 states have call predecessors, (426), 388 states have call successors, (426) [2024-12-02 12:29:46,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 3592 transitions. [2024-12-02 12:29:46,788 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 3592 transitions. Word has length 173 [2024-12-02 12:29:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:46,788 INFO L471 AbstractCegarLoop]: Abstraction has 2126 states and 3592 transitions. [2024-12-02 12:29:46,789 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), 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 12:29:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 3592 transitions. [2024-12-02 12:29:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-12-02 12:29:46,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:46,799 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 12:29:46,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:29:46,800 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:46,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash 940628, now seen corresponding path program 1 times [2024-12-02 12:29:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:46,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070668291] [2024-12-02 12:29:46,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:46,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:46,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:46,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070668291] [2024-12-02 12:29:46,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070668291] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:46,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:46,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:46,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250013615] [2024-12-02 12:29:46,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:46,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:46,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:46,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:46,894 INFO L87 Difference]: Start difference. First operand 2126 states and 3592 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 12:29:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:46,946 INFO L93 Difference]: Finished difference Result 5002 states and 8530 transitions. [2024-12-02 12:29:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:46,947 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), 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 193 [2024-12-02 12:29:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:46,957 INFO L225 Difference]: With dead ends: 5002 [2024-12-02 12:29:46,958 INFO L226 Difference]: Without dead ends: 3117 [2024-12-02 12:29:46,962 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 12:29:46,963 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 128 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1325 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 12:29:46,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2024-12-02 12:29:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3109. [2024-12-02 12:29:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 2512 states have (on average 1.6552547770700636) internal successors, (4158), 2524 states have internal predecessors, (4158), 552 states have call successors, (552), 41 states have call predecessors, (552), 44 states have return successors, (604), 547 states have call predecessors, (604), 550 states have call successors, (604) [2024-12-02 12:29:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 5314 transitions. [2024-12-02 12:29:47,045 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 5314 transitions. Word has length 193 [2024-12-02 12:29:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:47,045 INFO L471 AbstractCegarLoop]: Abstraction has 3109 states and 5314 transitions. [2024-12-02 12:29:47,045 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), 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 12:29:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 5314 transitions. [2024-12-02 12:29:47,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-02 12:29:47,054 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:47,054 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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 12:29:47,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:29:47,054 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:47,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:47,055 INFO L85 PathProgramCache]: Analyzing trace with hash 495398306, now seen corresponding path program 1 times [2024-12-02 12:29:47,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:47,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553120210] [2024-12-02 12:29:47,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:47,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:47,111 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:47,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:47,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553120210] [2024-12-02 12:29:47,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553120210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:47,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:47,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762551682] [2024-12-02 12:29:47,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:47,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:47,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:47,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:47,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:47,113 INFO L87 Difference]: Start difference. First operand 3109 states and 5314 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:29:47,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:47,181 INFO L93 Difference]: Finished difference Result 7380 states and 12716 transitions. [2024-12-02 12:29:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:47,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:29:47,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:47,196 INFO L225 Difference]: With dead ends: 7380 [2024-12-02 12:29:47,196 INFO L226 Difference]: Without dead ends: 4709 [2024-12-02 12:29:47,202 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 12:29:47,219 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 126 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1325 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 12:29:47,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1325 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:47,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2024-12-02 12:29:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 4701. [2024-12-02 12:29:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4701 states, 3859 states have (on average 1.6651982378854626) internal successors, (6426), 3871 states have internal predecessors, (6426), 797 states have call successors, (797), 41 states have call predecessors, (797), 44 states have return successors, (875), 792 states have call predecessors, (875), 795 states have call successors, (875) [2024-12-02 12:29:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 8098 transitions. [2024-12-02 12:29:47,353 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 8098 transitions. Word has length 194 [2024-12-02 12:29:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:47,354 INFO L471 AbstractCegarLoop]: Abstraction has 4701 states and 8098 transitions. [2024-12-02 12:29:47,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:29:47,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 8098 transitions. [2024-12-02 12:29:47,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-12-02 12:29:47,366 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:47,366 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 12:29:47,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:29:47,366 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:47,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:47,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1504567688, now seen corresponding path program 1 times [2024-12-02 12:29:47,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:47,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552977693] [2024-12-02 12:29:47,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:47,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:47,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:47,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552977693] [2024-12-02 12:29:47,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552977693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:47,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:47,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:47,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141913593] [2024-12-02 12:29:47,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:47,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:47,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:47,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:47,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:47,424 INFO L87 Difference]: Start difference. First operand 4701 states and 8098 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 12:29:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:47,601 INFO L93 Difference]: Finished difference Result 11349 states and 19699 transitions. [2024-12-02 12:29:47,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:47,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 195 [2024-12-02 12:29:47,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:47,642 INFO L225 Difference]: With dead ends: 11349 [2024-12-02 12:29:47,642 INFO L226 Difference]: Without dead ends: 7387 [2024-12-02 12:29:47,656 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 12:29:47,657 INFO L435 NwaCegarLoop]: 673 mSDtfsCounter, 124 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1330 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 12:29:47,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1330 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7387 states. [2024-12-02 12:29:47,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7387 to 7379. [2024-12-02 12:29:47,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 6044 states have (on average 1.6671078755790867) internal successors, (10076), 6056 states have internal predecessors, (10076), 1290 states have call successors, (1290), 41 states have call predecessors, (1290), 44 states have return successors, (1412), 1285 states have call predecessors, (1412), 1288 states have call successors, (1412) [2024-12-02 12:29:48,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 12778 transitions. [2024-12-02 12:29:48,007 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 12778 transitions. Word has length 195 [2024-12-02 12:29:48,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:48,007 INFO L471 AbstractCegarLoop]: Abstraction has 7379 states and 12778 transitions. [2024-12-02 12:29:48,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 12:29:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 12778 transitions. [2024-12-02 12:29:48,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 12:29:48,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:48,038 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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 12:29:48,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:29:48,038 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:48,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:48,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1716186754, now seen corresponding path program 1 times [2024-12-02 12:29:48,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:48,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466889126] [2024-12-02 12:29:48,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:48,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:48,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:48,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466889126] [2024-12-02 12:29:48,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466889126] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:48,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:48,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759987906] [2024-12-02 12:29:48,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:48,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:48,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:48,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:48,116 INFO L87 Difference]: Start difference. First operand 7379 states and 12778 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 12:29:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:48,381 INFO L93 Difference]: Finished difference Result 18551 states and 32339 transitions. [2024-12-02 12:29:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:48,382 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 196 [2024-12-02 12:29:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:48,436 INFO L225 Difference]: With dead ends: 18551 [2024-12-02 12:29:48,437 INFO L226 Difference]: Without dead ends: 12272 [2024-12-02 12:29:48,457 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 12:29:48,458 INFO L435 NwaCegarLoop]: 671 mSDtfsCounter, 122 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1332 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 12:29:48,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1332 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12272 states. [2024-12-02 12:29:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12272 to 12264. [2024-12-02 12:29:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12264 states, 10107 states have (on average 1.6693380825170674) internal successors, (16872), 10119 states have internal predecessors, (16872), 2112 states have call successors, (2112), 41 states have call predecessors, (2112), 44 states have return successors, (2312), 2107 states have call predecessors, (2312), 2110 states have call successors, (2312) [2024-12-02 12:29:48,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12264 states to 12264 states and 21296 transitions. [2024-12-02 12:29:48,940 INFO L78 Accepts]: Start accepts. Automaton has 12264 states and 21296 transitions. Word has length 196 [2024-12-02 12:29:48,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:48,941 INFO L471 AbstractCegarLoop]: Abstraction has 12264 states and 21296 transitions. [2024-12-02 12:29:48,941 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 12:29:48,941 INFO L276 IsEmpty]: Start isEmpty. Operand 12264 states and 21296 transitions. [2024-12-02 12:29:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 12:29:48,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:48,983 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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 12:29:48,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:29:48,984 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:48,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:48,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1339719638, now seen corresponding path program 1 times [2024-12-02 12:29:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987231132] [2024-12-02 12:29:48,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:48,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:49,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:49,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987231132] [2024-12-02 12:29:49,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987231132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:49,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:49,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944329944] [2024-12-02 12:29:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:49,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:49,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:49,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:49,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:49,072 INFO L87 Difference]: Start difference. First operand 12264 states and 21296 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 12:29:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:49,463 INFO L93 Difference]: Finished difference Result 29271 states and 50785 transitions. [2024-12-02 12:29:49,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:49,464 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), 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 197 [2024-12-02 12:29:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:49,552 INFO L225 Difference]: With dead ends: 29271 [2024-12-02 12:29:49,552 INFO L226 Difference]: Without dead ends: 19059 [2024-12-02 12:29:49,582 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 12:29:49,583 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 120 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1302 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 12:29:49,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1302 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:49,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19059 states. [2024-12-02 12:29:50,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19059 to 19051. [2024-12-02 12:29:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19051 states, 15691 states have (on average 1.6473137467337964) internal successors, (25848), 15703 states have internal predecessors, (25848), 3315 states have call successors, (3315), 41 states have call predecessors, (3315), 44 states have return successors, (3659), 3310 states have call predecessors, (3659), 3313 states have call successors, (3659) [2024-12-02 12:29:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19051 states to 19051 states and 32822 transitions. [2024-12-02 12:29:50,489 INFO L78 Accepts]: Start accepts. Automaton has 19051 states and 32822 transitions. Word has length 197 [2024-12-02 12:29:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:50,489 INFO L471 AbstractCegarLoop]: Abstraction has 19051 states and 32822 transitions. [2024-12-02 12:29:50,489 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), 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 12:29:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 19051 states and 32822 transitions. [2024-12-02 12:29:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 12:29:50,547 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:50,547 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1] [2024-12-02 12:29:50,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:29:50,548 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:50,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash 126258493, now seen corresponding path program 1 times [2024-12-02 12:29:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:50,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093905732] [2024-12-02 12:29:50,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:50,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:50,626 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:50,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:50,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093905732] [2024-12-02 12:29:50,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093905732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:50,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:50,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:50,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240998222] [2024-12-02 12:29:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:50,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:50,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:50,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:50,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:50,627 INFO L87 Difference]: Start difference. First operand 19051 states and 32822 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:29:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:51,158 INFO L93 Difference]: Finished difference Result 50263 states and 86925 transitions. [2024-12-02 12:29:51,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:51,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:29:51,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:51,271 INFO L225 Difference]: With dead ends: 50263 [2024-12-02 12:29:51,271 INFO L226 Difference]: Without dead ends: 33877 [2024-12-02 12:29:51,304 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 12:29:51,304 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 118 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1328 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 12:29:51,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1328 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33877 states. [2024-12-02 12:29:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33877 to 33869. [2024-12-02 12:29:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33869 states, 28059 states have (on average 1.6446772871449447) internal successors, (46148), 28071 states have internal predecessors, (46148), 5765 states have call successors, (5765), 41 states have call predecessors, (5765), 44 states have return successors, (6383), 5760 states have call predecessors, (6383), 5763 states have call successors, (6383) [2024-12-02 12:29:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33869 states to 33869 states and 58296 transitions. [2024-12-02 12:29:52,520 INFO L78 Accepts]: Start accepts. Automaton has 33869 states and 58296 transitions. Word has length 198 [2024-12-02 12:29:52,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:52,521 INFO L471 AbstractCegarLoop]: Abstraction has 33869 states and 58296 transitions. [2024-12-02 12:29:52,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 12:29:52,521 INFO L276 IsEmpty]: Start isEmpty. Operand 33869 states and 58296 transitions. [2024-12-02 12:29:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 12:29:52,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:52,598 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2024-12-02 12:29:52,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:29:52,598 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:52,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:52,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1808875056, now seen corresponding path program 1 times [2024-12-02 12:29:52,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:52,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034679912] [2024-12-02 12:29:52,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:52,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:52,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:52,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034679912] [2024-12-02 12:29:52,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034679912] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:52,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:52,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:52,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563388512] [2024-12-02 12:29:52,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:52,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:52,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:52,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:52,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:52,677 INFO L87 Difference]: Start difference. First operand 33869 states and 58296 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 12:29:53,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:53,934 INFO L93 Difference]: Finished difference Result 92300 states and 159352 transitions. [2024-12-02 12:29:53,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:53,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 199 [2024-12-02 12:29:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:54,147 INFO L225 Difference]: With dead ends: 92300 [2024-12-02 12:29:54,147 INFO L226 Difference]: Without dead ends: 61975 [2024-12-02 12:29:54,223 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 12:29:54,223 INFO L435 NwaCegarLoop]: 670 mSDtfsCounter, 116 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1331 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 12:29:54,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1331 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61975 states. [2024-12-02 12:29:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61975 to 61967. [2024-12-02 12:29:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61967 states, 51644 states have (on average 1.6406552552087368) internal successors, (84730), 51656 states have internal predecessors, (84730), 10278 states have call successors, (10278), 41 states have call predecessors, (10278), 44 states have return successors, (11428), 10273 states have call predecessors, (11428), 10276 states have call successors, (11428) [2024-12-02 12:29:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61967 states to 61967 states and 106436 transitions. [2024-12-02 12:29:56,013 INFO L78 Accepts]: Start accepts. Automaton has 61967 states and 106436 transitions. Word has length 199 [2024-12-02 12:29:56,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:56,013 INFO L471 AbstractCegarLoop]: Abstraction has 61967 states and 106436 transitions. [2024-12-02 12:29:56,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 12:29:56,013 INFO L276 IsEmpty]: Start isEmpty. Operand 61967 states and 106436 transitions. [2024-12-02 12:29:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 12:29:56,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:56,140 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2024-12-02 12:29:56,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:29:56,141 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:56,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:56,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1192799939, now seen corresponding path program 1 times [2024-12-02 12:29:56,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:56,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099680712] [2024-12-02 12:29:56,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 12:29:56,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:56,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099680712] [2024-12-02 12:29:56,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099680712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:56,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:56,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:56,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664063796] [2024-12-02 12:29:56,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:56,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:56,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:56,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:56,248 INFO L87 Difference]: Start difference. First operand 61967 states and 106436 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 12:29:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:58,169 INFO L93 Difference]: Finished difference Result 116157 states and 199898 transitions. [2024-12-02 12:29:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:58,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 200 [2024-12-02 12:29:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:58,443 INFO L225 Difference]: With dead ends: 116157 [2024-12-02 12:29:58,443 INFO L226 Difference]: Without dead ends: 115760 [2024-12-02 12:29:58,480 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 12:29:58,481 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 111 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1334 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 12:29:58,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1334 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115760 states. [2024-12-02 12:30:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115760 to 115752. [2024-12-02 12:30:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115752 states, 97061 states have (on average 1.6353942366140881) internal successors, (158733), 97073 states have internal predecessors, (158733), 18646 states have call successors, (18646), 41 states have call predecessors, (18646), 44 states have return successors, (20842), 18641 states have call predecessors, (20842), 18644 states have call successors, (20842) [2024-12-02 12:30:02,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115752 states to 115752 states and 198221 transitions. [2024-12-02 12:30:02,525 INFO L78 Accepts]: Start accepts. Automaton has 115752 states and 198221 transitions. Word has length 200 [2024-12-02 12:30:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:02,526 INFO L471 AbstractCegarLoop]: Abstraction has 115752 states and 198221 transitions. [2024-12-02 12:30:02,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 12:30:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 115752 states and 198221 transitions. [2024-12-02 12:30:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 12:30:02,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:02,730 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-12-02 12:30:02,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:30:02,730 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:02,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:02,730 INFO L85 PathProgramCache]: Analyzing trace with hash 248160356, now seen corresponding path program 1 times [2024-12-02 12:30:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:02,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083272027] [2024-12-02 12:30:02,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:02,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 12:30:03,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:03,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083272027] [2024-12-02 12:30:03,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083272027] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:30:03,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348763144] [2024-12-02 12:30:03,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:03,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:03,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:03,290 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:30:03,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:30:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:03,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:30:03,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 12:30:03,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:30:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 12:30:04,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348763144] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:30:04,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:30:04,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2024-12-02 12:30:04,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141778682] [2024-12-02 12:30:04,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:30:04,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:30:04,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:04,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:30:04,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:30:04,355 INFO L87 Difference]: Start difference. First operand 115752 states and 198221 transitions. Second operand has 28 states, 26 states have (on average 10.846153846153847) internal successors, (282), 24 states have internal predecessors, (282), 9 states have call successors, (58), 8 states have call predecessors, (58), 12 states have return successors, (51), 11 states have call predecessors, (51), 9 states have call successors, (51) [2024-12-02 12:30:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:21,055 INFO L93 Difference]: Finished difference Result 462250 states and 815358 transitions. [2024-12-02 12:30:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-12-02 12:30:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 10.846153846153847) internal successors, (282), 24 states have internal predecessors, (282), 9 states have call successors, (58), 8 states have call predecessors, (58), 12 states have return successors, (51), 11 states have call predecessors, (51), 9 states have call successors, (51) Word has length 182 [2024-12-02 12:30:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:22,851 INFO L225 Difference]: With dead ends: 462250 [2024-12-02 12:30:22,851 INFO L226 Difference]: Without dead ends: 461873 [2024-12-02 12:30:22,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3484 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1363, Invalid=11293, Unknown=0, NotChecked=0, Total=12656 [2024-12-02 12:30:22,952 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 8927 mSDsluCounter, 5236 mSDsCounter, 0 mSdLazyCounter, 13532 mSolverCounterSat, 2838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9002 SdHoareTripleChecker+Valid, 5496 SdHoareTripleChecker+Invalid, 16370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2838 IncrementalHoareTripleChecker+Valid, 13532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:22,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9002 Valid, 5496 Invalid, 16370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2838 Valid, 13532 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-12-02 12:30:23,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461873 states. [2024-12-02 12:30:35,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461873 to 461611. [2024-12-02 12:30:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461611 states, 387106 states have (on average 1.6356295174964997) internal successors, (633162), 386955 states have internal predecessors, (633162), 74254 states have call successors, (74254), 224 states have call predecessors, (74254), 250 states have return successors, (98302), 74459 states have call predecessors, (98302), 74242 states have call successors, (98302) [2024-12-02 12:30:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461611 states to 461611 states and 805718 transitions. [2024-12-02 12:30:37,048 INFO L78 Accepts]: Start accepts. Automaton has 461611 states and 805718 transitions. Word has length 182 [2024-12-02 12:30:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:37,048 INFO L471 AbstractCegarLoop]: Abstraction has 461611 states and 805718 transitions. [2024-12-02 12:30:37,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 10.846153846153847) internal successors, (282), 24 states have internal predecessors, (282), 9 states have call successors, (58), 8 states have call predecessors, (58), 12 states have return successors, (51), 11 states have call predecessors, (51), 9 states have call successors, (51) [2024-12-02 12:30:37,048 INFO L276 IsEmpty]: Start isEmpty. Operand 461611 states and 805718 transitions. [2024-12-02 12:30:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 12:30:37,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:37,763 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, 1, 1, 1, 1] [2024-12-02 12:30:37,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 12:30:37,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 12:30:37,964 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:37,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 400422939, now seen corresponding path program 1 times [2024-12-02 12:30:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901479165] [2024-12-02 12:30:37,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:37,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:30:38,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:38,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901479165] [2024-12-02 12:30:38,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901479165] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:30:38,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213910853] [2024-12-02 12:30:38,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:38,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:38,145 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:30:38,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:30:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:38,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:30:38,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 12:30:38,628 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:38,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213910853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:38,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:30:38,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-12-02 12:30:38,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460171126] [2024-12-02 12:30:38,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:38,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:30:38,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:38,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:30:38,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:30:38,629 INFO L87 Difference]: Start difference. First operand 461611 states and 805718 transitions. Second operand has 9 states, 8 states have (on average 15.75) internal successors, (126), 7 states have internal predecessors, (126), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 12:30:48,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:48,656 INFO L93 Difference]: Finished difference Result 464249 states and 809639 transitions. [2024-12-02 12:30:48,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:30:48,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 7 states have internal predecessors, (126), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 184 [2024-12-02 12:30:48,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:50,190 INFO L225 Difference]: With dead ends: 464249 [2024-12-02 12:30:50,190 INFO L226 Difference]: Without dead ends: 461647 [2024-12-02 12:30:50,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:30:50,302 INFO L435 NwaCegarLoop]: 637 mSDtfsCounter, 679 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:50,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 4405 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:30:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461647 states. [2024-12-02 12:31:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461647 to 461635. [2024-12-02 12:31:02,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461635 states, 387112 states have (on average 1.6355886668457706) internal successors, (633156), 386961 states have internal predecessors, (633156), 74272 states have call successors, (74272), 224 states have call predecessors, (74272), 250 states have return successors, (98318), 74477 states have call predecessors, (98318), 74254 states have call successors, (98318) [2024-12-02 12:31:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461635 states to 461635 states and 805746 transitions. [2024-12-02 12:31:04,915 INFO L78 Accepts]: Start accepts. Automaton has 461635 states and 805746 transitions. Word has length 184 [2024-12-02 12:31:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:04,915 INFO L471 AbstractCegarLoop]: Abstraction has 461635 states and 805746 transitions. [2024-12-02 12:31:04,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 7 states have internal predecessors, (126), 4 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 12:31:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 461635 states and 805746 transitions. [2024-12-02 12:31:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 12:31:05,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:05,855 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-12-02 12:31:05,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 12:31:06,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 12:31:06,055 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:06,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1437633104, now seen corresponding path program 1 times [2024-12-02 12:31:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:31:06,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226764531] [2024-12-02 12:31:06,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:06,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:31:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 12:31:06,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:31:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226764531] [2024-12-02 12:31:06,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226764531] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:31:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972097863] [2024-12-02 12:31:06,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:06,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:31:06,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:31:06,180 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:31:06,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 12:31:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:06,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:31:06,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 12:31:06,730 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:06,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972097863] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:06,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:31:06,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-12-02 12:31:06,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412198485] [2024-12-02 12:31:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:06,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:31:06,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:31:06,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:31:06,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:31:06,732 INFO L87 Difference]: Start difference. First operand 461635 states and 805746 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:31:16,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:16,566 INFO L93 Difference]: Finished difference Result 692455 states and 1212952 transitions. [2024-12-02 12:31:16,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:31:16,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 204 [2024-12-02 12:31:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:18,084 INFO L225 Difference]: With dead ends: 692455 [2024-12-02 12:31:18,084 INFO L226 Difference]: Without dead ends: 461651 [2024-12-02 12:31:18,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 202 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 12:31:18,682 INFO L435 NwaCegarLoop]: 659 mSDtfsCounter, 1 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2618 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 12:31:18,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2618 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:18,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461651 states. [2024-12-02 12:31:32,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461651 to 461635. [2024-12-02 12:31:32,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461635 states, 387112 states have (on average 1.6355835003823183) internal successors, (633154), 386961 states have internal predecessors, (633154), 74272 states have call successors, (74272), 224 states have call predecessors, (74272), 250 states have return successors, (98318), 74477 states have call predecessors, (98318), 74254 states have call successors, (98318) [2024-12-02 12:31:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461635 states to 461635 states and 805744 transitions. [2024-12-02 12:31:34,156 INFO L78 Accepts]: Start accepts. Automaton has 461635 states and 805744 transitions. Word has length 204 [2024-12-02 12:31:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:34,156 INFO L471 AbstractCegarLoop]: Abstraction has 461635 states and 805744 transitions. [2024-12-02 12:31:34,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:31:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 461635 states and 805744 transitions. [2024-12-02 12:31:35,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-12-02 12:31:35,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:35,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:35,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 12:31:35,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 12:31:35,378 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:35,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 184372917, now seen corresponding path program 1 times [2024-12-02 12:31:35,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:31:35,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618440668] [2024-12-02 12:31:35,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:35,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:31:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 12:31:35,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:31:35,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618440668] [2024-12-02 12:31:35,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618440668] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:31:35,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138441822] [2024-12-02 12:31:35,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:35,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:31:35,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:31:35,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:31:35,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 12:31:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:35,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:31:35,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-12-02 12:31:36,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:36,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138441822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:36,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:31:36,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 12:31:36,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838906953] [2024-12-02 12:31:36,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:36,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:31:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:31:36,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:31:36,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:31:36,009 INFO L87 Difference]: Start difference. First operand 461635 states and 805744 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:31:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:45,460 INFO L93 Difference]: Finished difference Result 464141 states and 809455 transitions. [2024-12-02 12:31:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:31:45,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 205 [2024-12-02 12:31:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:46,796 INFO L225 Difference]: With dead ends: 464141 [2024-12-02 12:31:46,796 INFO L226 Difference]: Without dead ends: 461761 [2024-12-02 12:31:47,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:31:47,129 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 34 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:47,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1940 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461761 states. [2024-12-02 12:31:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461761 to 461725. [2024-12-02 12:32:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461725 states, 387196 states have (on average 1.6355850783582475) internal successors, (633292), 387045 states have internal predecessors, (633292), 74272 states have call successors, (74272), 230 states have call predecessors, (74272), 256 states have return successors, (98318), 74477 states have call predecessors, (98318), 74254 states have call successors, (98318) [2024-12-02 12:32:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461725 states to 461725 states and 805882 transitions. [2024-12-02 12:32:01,507 INFO L78 Accepts]: Start accepts. Automaton has 461725 states and 805882 transitions. Word has length 205 [2024-12-02 12:32:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:32:01,508 INFO L471 AbstractCegarLoop]: Abstraction has 461725 states and 805882 transitions. [2024-12-02 12:32:01,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:32:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 461725 states and 805882 transitions. [2024-12-02 12:32:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 12:32:02,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:32:02,411 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 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 12:32:02,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 12:32:02,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:32:02,611 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:32:02,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:32:02,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1723453475, now seen corresponding path program 1 times [2024-12-02 12:32:02,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:32:02,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652878183] [2024-12-02 12:32:02,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:32:02,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:32:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:32:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-12-02 12:32:02,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:32:02,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652878183] [2024-12-02 12:32:02,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652878183] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:32:02,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356371248] [2024-12-02 12:32:02,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:32:02,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:32:02,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:32:02,784 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:32:02,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 12:32:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:32:03,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 12:32:03,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:32:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 12:32:03,465 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:32:03,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356371248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:32:03,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:32:03,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 21 [2024-12-02 12:32:03,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567058454] [2024-12-02 12:32:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:32:03,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:32:03,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:32:03,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:32:03,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:32:03,466 INFO L87 Difference]: Start difference. First operand 461725 states and 805882 transitions. Second operand has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 6 states have call successors, (23), 5 states have call predecessors, (23), 7 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-12-02 12:32:24,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:32:24,102 INFO L93 Difference]: Finished difference Result 918349 states and 1624184 transitions. [2024-12-02 12:32:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 12:32:24,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 6 states have call successors, (23), 5 states have call predecessors, (23), 7 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 185 [2024-12-02 12:32:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:32:27,732 INFO L225 Difference]: With dead ends: 918349 [2024-12-02 12:32:27,732 INFO L226 Difference]: Without dead ends: 916139 [2024-12-02 12:32:28,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=1174, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 12:32:28,027 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 1330 mSDsluCounter, 7046 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 7713 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:32:28,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 7713 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:32:28,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916139 states. [2024-12-02 12:32:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916139 to 915875. [2024-12-02 12:32:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915875 states, 768194 states have (on average 1.6362455317276625) internal successors, (1256954), 767571 states have internal predecessors, (1256954), 147100 states have call successors, (147100), 514 states have call predecessors, (147100), 580 states have return successors, (216368), 147857 states have call predecessors, (216368), 147058 states have call successors, (216368) [2024-12-02 12:33:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915875 states to 915875 states and 1620422 transitions. [2024-12-02 12:33:03,467 INFO L78 Accepts]: Start accepts. Automaton has 915875 states and 1620422 transitions. Word has length 185 [2024-12-02 12:33:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:03,467 INFO L471 AbstractCegarLoop]: Abstraction has 915875 states and 1620422 transitions. [2024-12-02 12:33:03,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 6 states have call successors, (23), 5 states have call predecessors, (23), 7 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-12-02 12:33:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 915875 states and 1620422 transitions. [2024-12-02 12:33:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 12:33:05,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:05,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:05,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 12:33:05,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:33:05,777 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:05,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash 202553011, now seen corresponding path program 1 times [2024-12-02 12:33:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:05,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648250106] [2024-12-02 12:33:05,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:05,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 12:33:06,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:06,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648250106] [2024-12-02 12:33:06,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648250106] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:33:06,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097532038] [2024-12-02 12:33:06,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:33:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:33:06,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:33:06,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 12:33:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:07,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:33:07,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:33:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 12:33:07,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:33:07,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097532038] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:07,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:33:07,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2024-12-02 12:33:07,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790848357] [2024-12-02 12:33:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:07,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:33:07,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:07,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:33:07,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:33:07,591 INFO L87 Difference]: Start difference. First operand 915875 states and 1620422 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 6 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 12:33:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:26,648 INFO L93 Difference]: Finished difference Result 922223 states and 1629905 transitions. [2024-12-02 12:33:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:33:26,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 6 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 206 [2024-12-02 12:33:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:30,299 INFO L225 Difference]: With dead ends: 922223 [2024-12-02 12:33:30,299 INFO L226 Difference]: Without dead ends: 915903 [2024-12-02 12:33:30,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:33:30,533 INFO L435 NwaCegarLoop]: 659 mSDtfsCounter, 38 mSDsluCounter, 5248 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:30,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 5907 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:33:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915903 states. [2024-12-02 12:33:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915903 to 915903. [2024-12-02 12:34:00,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915903 states, 768208 states have (on average 1.636215712411222) internal successors, (1256954), 767599 states have internal predecessors, (1256954), 147100 states have call successors, (147100), 514 states have call predecessors, (147100), 594 states have return successors, (216416), 147857 states have call predecessors, (216416), 147058 states have call successors, (216416) [2024-12-02 12:34:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915903 states to 915903 states and 1620470 transitions. [2024-12-02 12:34:05,212 INFO L78 Accepts]: Start accepts. Automaton has 915903 states and 1620470 transitions. Word has length 206 [2024-12-02 12:34:05,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:34:05,213 INFO L471 AbstractCegarLoop]: Abstraction has 915903 states and 1620470 transitions. [2024-12-02 12:34:05,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 6 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 12:34:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 915903 states and 1620470 transitions. [2024-12-02 12:34:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 12:34:07,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:34:07,043 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:34:07,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 12:34:07,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 12:34:07,247 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:34:07,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:34:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash -879078201, now seen corresponding path program 1 times [2024-12-02 12:34:07,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:34:07,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118590423] [2024-12-02 12:34:07,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:34:07,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:34:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:34:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 12:34:07,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:34:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118590423] [2024-12-02 12:34:07,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118590423] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:34:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413157036] [2024-12-02 12:34:07,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:34:07,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:34:07,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:34:07,524 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:34:07,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e7481e-b5b6-4cdc-901d-be699df75f4d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 12:34:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:34:07,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 12:34:07,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:34:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 12:34:08,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:34:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 12:34:08,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413157036] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:34:08,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:34:08,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-12-02 12:34:08,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409498361] [2024-12-02 12:34:08,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:34:08,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 12:34:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:34:08,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 12:34:08,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:34:08,504 INFO L87 Difference]: Start difference. First operand 915903 states and 1620470 transitions. Second operand has 23 states, 22 states have (on average 14.454545454545455) internal successors, (318), 19 states have internal predecessors, (318), 7 states have call successors, (69), 8 states have call predecessors, (69), 10 states have return successors, (61), 8 states have call predecessors, (61), 7 states have call successors, (61) [2024-12-02 12:34:52,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:34:52,002 INFO L93 Difference]: Finished difference Result 1840009 states and 3321927 transitions. [2024-12-02 12:34:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-12-02 12:34:52,002 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 14.454545454545455) internal successors, (318), 19 states have internal predecessors, (318), 7 states have call successors, (69), 8 states have call predecessors, (69), 10 states have return successors, (61), 8 states have call predecessors, (61), 7 states have call successors, (61) Word has length 206 [2024-12-02 12:34:52,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:34:59,002 INFO L225 Difference]: With dead ends: 1840009 [2024-12-02 12:34:59,002 INFO L226 Difference]: Without dead ends: 1833411 [2024-12-02 12:34:59,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=418, Invalid=2444, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 12:34:59,825 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 3249 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 10360 mSolverCounterSat, 949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3268 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 11309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 949 IncrementalHoareTripleChecker+Valid, 10360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:34:59,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3268 Valid, 3013 Invalid, 11309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [949 Valid, 10360 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 12:35:00,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833411 states.