./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1b2e6fc3090957bb44fbf381fe29c5adbd1106bdb77e2b6b77c5e6e962ffc5b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:37:55,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:37:55,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:37:55,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:37:55,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:37:55,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:37:55,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:37:55,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:37:55,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:37:55,428 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:37:55,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:37:55,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:37:55,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:37:55,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:37:55,429 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:37:55,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:37:55,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:37:55,432 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:37:55,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:37:55,433 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:37:55,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:37:55,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:37:55,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:37:55,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:37:55,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:37:55,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:37:55,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:37:55,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:37:55,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:37:55,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:37:55,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:37:55,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:37:55,437 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_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b2e6fc3090957bb44fbf381fe29c5adbd1106bdb77e2b6b77c5e6e962ffc5b [2024-11-23 23:37:55,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:37:55,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:37:55,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:37:55,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:37:55,851 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:37:55,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec27_product29.cil.c [2024-11-23 23:37:59,219 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/data/41ed7495f/9a80d1021b9941919e6ee528e59227dd/FLAG22844ba95 [2024-11-23 23:37:59,825 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:37:59,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c [2024-11-23 23:37:59,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/data/41ed7495f/9a80d1021b9941919e6ee528e59227dd/FLAG22844ba95 [2024-11-23 23:37:59,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/data/41ed7495f/9a80d1021b9941919e6ee528e59227dd [2024-11-23 23:37:59,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:37:59,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:37:59,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:37:59,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:37:59,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:37:59,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:59" (1/1) ... [2024-11-23 23:37:59,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9fd262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:37:59, skipping insertion in model container [2024-11-23 23:37:59,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:37:59" (1/1) ... [2024-11-23 23:37:59,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:38:00,573 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_86299c99-252e-48db-97f1-ae83a2bd8d88/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c[37973,37986] [2024-11-23 23:38:00,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:38:00,864 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:38:00,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-23 23:38:00,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [414] [2024-11-23 23:38:00,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1494] [2024-11-23 23:38:00,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1543] [2024-11-23 23:38:00,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1561] [2024-11-23 23:38:00,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1570] [2024-11-23 23:38:00,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1718] [2024-11-23 23:38:00,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1943] [2024-11-23 23:38:00,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2320] [2024-11-23 23:38:00,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2717] [2024-11-23 23:38:00,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2995] [2024-11-23 23:38:00,976 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_86299c99-252e-48db-97f1-ae83a2bd8d88/sv-benchmarks/c/product-lines/email_spec27_product29.cil.c[37973,37986] [2024-11-23 23:38:01,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:38:01,139 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:38:01,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01 WrapperNode [2024-11-23 23:38:01,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:38:01,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:38:01,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:38:01,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:38:01,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,237 INFO L138 Inliner]: procedures = 131, calls = 212, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 929 [2024-11-23 23:38:01,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:38:01,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:38:01,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:38:01,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:38:01,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,267 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,320 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]. [2024-11-23 23:38:01,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:38:01,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:38:01,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:38:01,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:38:01,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (1/1) ... [2024-11-23 23:38:01,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:38:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:01,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:38:01,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:38:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-23 23:38:01,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-23 23:38:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-23 23:38:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-23 23:38:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-23 23:38:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-23 23:38:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-23 23:38:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-23 23:38:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-23 23:38:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-23 23:38:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-23 23:38:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-23 23:38:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-23 23:38:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-23 23:38:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-23 23:38:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-23 23:38:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-23 23:38:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-23 23:38:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-23 23:38:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-23 23:38:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-23 23:38:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-23 23:38:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-23 23:38:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-23 23:38:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-23 23:38:01,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-23 23:38:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:38:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:38:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:38:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:38:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-23 23:38:01,532 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-23 23:38:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-23 23:38:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-23 23:38:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:38:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:38:01,847 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:38:01,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:38:03,375 INFO L? ?]: Removed 510 outVars from TransFormulas that were not future-live. [2024-11-23 23:38:03,376 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:38:03,422 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:38:03,426 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:38:03,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:38:03 BoogieIcfgContainer [2024-11-23 23:38:03,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:38:03,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:38:03,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:38:03,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:38:03,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:37:59" (1/3) ... [2024-11-23 23:38:03,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6a38eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:38:03, skipping insertion in model container [2024-11-23 23:38:03,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:38:01" (2/3) ... [2024-11-23 23:38:03,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6a38eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:38:03, skipping insertion in model container [2024-11-23 23:38:03,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:38:03" (3/3) ... [2024-11-23 23:38:03,451 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product29.cil.c [2024-11-23 23:38:03,473 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:38:03,476 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product29.cil.c that has 30 procedures, 414 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:38:03,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:38:03,617 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;@29ea1f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:38:03,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:38:03,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 414 states, 319 states have (on average 1.554858934169279) internal successors, (496), 324 states have internal predecessors, (496), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:38:03,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 23:38:03,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:03,668 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:03,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:03,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1804980866, now seen corresponding path program 1 times [2024-11-23 23:38:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997134254] [2024-11-23 23:38:03,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 23:38:04,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:04,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997134254] [2024-11-23 23:38:04,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997134254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:04,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395120957] [2024-11-23 23:38:04,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:04,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:04,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:04,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:04,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:38:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:05,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:38:05,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 23:38:05,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:05,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395120957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:05,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:05,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:38:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244055467] [2024-11-23 23:38:05,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:05,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:05,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:05,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:05,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:38:05,765 INFO L87 Difference]: Start difference. First operand has 414 states, 319 states have (on average 1.554858934169279) internal successors, (496), 324 states have internal predecessors, (496), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:05,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:05,918 INFO L93 Difference]: Finished difference Result 643 states and 952 transitions. [2024-11-23 23:38:05,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:05,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2024-11-23 23:38:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:05,947 INFO L225 Difference]: With dead ends: 643 [2024-11-23 23:38:05,947 INFO L226 Difference]: Without dead ends: 409 [2024-11-23 23:38:05,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:38:05,963 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 1 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:05,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1233 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-23 23:38:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 408. [2024-11-23 23:38:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 314 states have (on average 1.5477707006369428) internal successors, (486), 318 states have internal predecessors, (486), 64 states have call successors, (64), 29 states have call predecessors, (64), 29 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 23:38:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 613 transitions. [2024-11-23 23:38:06,112 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 613 transitions. Word has length 151 [2024-11-23 23:38:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:06,121 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 613 transitions. [2024-11-23 23:38:06,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 613 transitions. [2024-11-23 23:38:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-23 23:38:06,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:06,137 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] [2024-11-23 23:38:06,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:38:06,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:38:06,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:06,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:06,345 INFO L85 PathProgramCache]: Analyzing trace with hash 375584065, now seen corresponding path program 1 times [2024-11-23 23:38:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:06,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942370885] [2024-11-23 23:38:06,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-23 23:38:07,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942370885] [2024-11-23 23:38:07,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942370885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977404995] [2024-11-23 23:38:07,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:07,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:07,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:07,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:07,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:38:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:07,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:38:07,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-23 23:38:07,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:07,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977404995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:07,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:07,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-23 23:38:07,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629874812] [2024-11-23 23:38:07,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:07,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:07,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:07,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:38:07,889 INFO L87 Difference]: Start difference. First operand 408 states and 613 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:38:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:07,983 INFO L93 Difference]: Finished difference Result 859 states and 1310 transitions. [2024-11-23 23:38:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:07,984 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 [2024-11-23 23:38:07,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:07,993 INFO L225 Difference]: With dead ends: 859 [2024-11-23 23:38:07,997 INFO L226 Difference]: Without dead ends: 477 [2024-11-23 23:38:07,999 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 [2024-11-23 23:38:08,001 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 126 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:08,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1190 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-23 23:38:08,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 469. [2024-11-23 23:38:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 361 states have (on average 1.5678670360110802) internal successors, (566), 365 states have internal predecessors, (566), 78 states have call successors, (78), 29 states have call predecessors, (78), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-23 23:38:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 721 transitions. [2024-11-23 23:38:08,080 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 721 transitions. Word has length 175 [2024-11-23 23:38:08,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:08,081 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 721 transitions. [2024-11-23 23:38:08,081 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) [2024-11-23 23:38:08,081 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 721 transitions. [2024-11-23 23:38:08,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-23 23:38:08,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:08,091 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] [2024-11-23 23:38:08,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:38:08,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:08,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:08,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash -758691601, now seen corresponding path program 1 times [2024-11-23 23:38:08,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:08,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079732898] [2024-11-23 23:38:08,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:08,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 23:38:08,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:08,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079732898] [2024-11-23 23:38:08,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079732898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535982223] [2024-11-23 23:38:08,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:08,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:08,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:08,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:08,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:38:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:09,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:38:09,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 23:38:09,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:09,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535982223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:09,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:09,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 23:38:09,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887700921] [2024-11-23 23:38:09,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:09,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:38:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:09,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:38:09,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:38:09,346 INFO L87 Difference]: Start difference. First operand 469 states and 721 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-23 23:38:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:09,484 INFO L93 Difference]: Finished difference Result 929 states and 1432 transitions. [2024-11-23 23:38:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:38:09,485 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 [2024-11-23 23:38:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:09,491 INFO L225 Difference]: With dead ends: 929 [2024-11-23 23:38:09,492 INFO L226 Difference]: Without dead ends: 471 [2024-11-23 23:38:09,498 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 [2024-11-23 23:38:09,499 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 2 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:09,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2405 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:38:09,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-23 23:38:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2024-11-23 23:38:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 362 states have (on average 1.5662983425414365) internal successors, (567), 367 states have internal predecessors, (567), 78 states have call successors, (78), 29 states have call predecessors, (78), 30 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2024-11-23 23:38:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 724 transitions. [2024-11-23 23:38:09,551 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 724 transitions. Word has length 157 [2024-11-23 23:38:09,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:09,552 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 724 transitions. [2024-11-23 23:38:09,553 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) [2024-11-23 23:38:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 724 transitions. [2024-11-23 23:38:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-23 23:38:09,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:09,564 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:09,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:38:09,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:09,770 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:09,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1658974513, now seen corresponding path program 1 times [2024-11-23 23:38:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:09,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572551947] [2024-11-23 23:38:09,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:38:10,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572551947] [2024-11-23 23:38:10,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572551947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376362859] [2024-11-23 23:38:10,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:10,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:10,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:10,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:10,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:38:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:10,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:38:10,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 23:38:10,852 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:10,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376362859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:10,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:10,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-23 23:38:10,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875575858] [2024-11-23 23:38:10,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:10,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:38:10,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:10,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:38:10,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:38:10,858 INFO L87 Difference]: Start difference. First operand 471 states and 724 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:38:11,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:11,006 INFO L93 Difference]: Finished difference Result 931 states and 1437 transitions. [2024-11-23 23:38:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:38:11,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 177 [2024-11-23 23:38:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:11,014 INFO L225 Difference]: With dead ends: 931 [2024-11-23 23:38:11,014 INFO L226 Difference]: Without dead ends: 473 [2024-11-23 23:38:11,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:38:11,021 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 2 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:11,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2391 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:38:11,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-23 23:38:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-23 23:38:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 363 states have (on average 1.5647382920110193) internal successors, (568), 369 states have internal predecessors, (568), 78 states have call successors, (78), 29 states have call predecessors, (78), 31 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2024-11-23 23:38:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 730 transitions. [2024-11-23 23:38:11,066 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 730 transitions. Word has length 177 [2024-11-23 23:38:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:11,066 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 730 transitions. [2024-11-23 23:38:11,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:38:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 730 transitions. [2024-11-23 23:38:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-23 23:38:11,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:11,071 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] [2024-11-23 23:38:11,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:38:11,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:11,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:11,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash 769114902, now seen corresponding path program 1 times [2024-11-23 23:38:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:11,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454605897] [2024-11-23 23:38:11,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:11,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-23 23:38:11,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:11,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454605897] [2024-11-23 23:38:11,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454605897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:11,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:11,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:38:11,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054784817] [2024-11-23 23:38:11,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:11,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:38:11,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:11,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:38:11,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:38:11,648 INFO L87 Difference]: Start difference. First operand 473 states and 730 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-23 23:38:11,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:11,733 INFO L93 Difference]: Finished difference Result 923 states and 1428 transitions. [2024-11-23 23:38:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:38:11,734 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 [2024-11-23 23:38:11,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:11,738 INFO L225 Difference]: With dead ends: 923 [2024-11-23 23:38:11,738 INFO L226 Difference]: Without dead ends: 473 [2024-11-23 23:38:11,740 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 [2024-11-23 23:38:11,741 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 2 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:11,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2409 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:11,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-23 23:38:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-23 23:38:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 363 states have (on average 1.5647382920110193) internal successors, (568), 369 states have internal predecessors, (568), 78 states have call successors, (78), 29 states have call predecessors, (78), 31 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2024-11-23 23:38:11,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 729 transitions. [2024-11-23 23:38:11,770 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 729 transitions. Word has length 159 [2024-11-23 23:38:11,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:11,771 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 729 transitions. [2024-11-23 23:38:11,771 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) [2024-11-23 23:38:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 729 transitions. [2024-11-23 23:38:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 23:38:11,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:11,776 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] [2024-11-23 23:38:11,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:38:11,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:11,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:11,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1013716969, now seen corresponding path program 2 times [2024-11-23 23:38:11,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:11,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127187339] [2024-11-23 23:38:11,777 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:38:11,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:11,829 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:38:11,829 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:38:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-23 23:38:12,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:12,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127187339] [2024-11-23 23:38:12,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127187339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:12,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:12,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:38:12,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274666643] [2024-11-23 23:38:12,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:12,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:38:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:12,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:38:12,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:38:12,137 INFO L87 Difference]: Start difference. First operand 473 states and 729 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-23 23:38:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:12,880 INFO L93 Difference]: Finished difference Result 1089 states and 1689 transitions. [2024-11-23 23:38:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:38:12,880 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 [2024-11-23 23:38:12,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:12,892 INFO L225 Difference]: With dead ends: 1089 [2024-11-23 23:38:12,892 INFO L226 Difference]: Without dead ends: 874 [2024-11-23 23:38:12,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:38:12,896 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 649 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 3967 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:12,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 3967 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:38:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-11-23 23:38:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 830. [2024-11-23 23:38:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 645 states have (on average 1.5984496124031007) internal successors, (1031), 653 states have internal predecessors, (1031), 133 states have call successors, (133), 51 states have call predecessors, (133), 51 states have return successors, (148), 128 states have call predecessors, (148), 132 states have call successors, (148) [2024-11-23 23:38:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1312 transitions. [2024-11-23 23:38:12,998 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1312 transitions. Word has length 160 [2024-11-23 23:38:12,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:12,999 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1312 transitions. [2024-11-23 23:38:12,999 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) [2024-11-23 23:38:12,999 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1312 transitions. [2024-11-23 23:38:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-23 23:38:13,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:13,009 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:13,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:38:13,010 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:13,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1248000606, now seen corresponding path program 1 times [2024-11-23 23:38:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616140597] [2024-11-23 23:38:13,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:13,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-23 23:38:13,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:13,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616140597] [2024-11-23 23:38:13,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616140597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:13,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:13,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:38:13,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912402054] [2024-11-23 23:38:13,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:13,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:38:13,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:13,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:38:13,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:38:13,372 INFO L87 Difference]: Start difference. First operand 830 states and 1312 transitions. Second operand has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:38:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:13,502 INFO L93 Difference]: Finished difference Result 1629 states and 2584 transitions. [2024-11-23 23:38:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:38:13,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 180 [2024-11-23 23:38:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:13,514 INFO L225 Difference]: With dead ends: 1629 [2024-11-23 23:38:13,514 INFO L226 Difference]: Without dead ends: 834 [2024-11-23 23:38:13,518 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 [2024-11-23 23:38:13,519 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 1 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:13,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2412 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-23 23:38:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-11-23 23:38:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 647 states have (on average 1.5965996908809892) internal successors, (1033), 657 states have internal predecessors, (1033), 133 states have call successors, (133), 51 states have call predecessors, (133), 53 states have return successors, (151), 128 states have call predecessors, (151), 132 states have call successors, (151) [2024-11-23 23:38:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1317 transitions. [2024-11-23 23:38:13,589 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1317 transitions. Word has length 180 [2024-11-23 23:38:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:13,590 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1317 transitions. [2024-11-23 23:38:13,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:38:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1317 transitions. [2024-11-23 23:38:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 23:38:13,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:13,598 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-23 23:38:13,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:38:13,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:13,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash 665454772, now seen corresponding path program 1 times [2024-11-23 23:38:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:13,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273390829] [2024-11-23 23:38:13,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 23:38:14,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:14,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273390829] [2024-11-23 23:38:14,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273390829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:14,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:14,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:38:14,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777528837] [2024-11-23 23:38:14,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:14,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:38:14,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:14,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:38:14,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:38:14,033 INFO L87 Difference]: Start difference. First operand 834 states and 1317 transitions. Second operand has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 23:38:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:14,335 INFO L93 Difference]: Finished difference Result 1628 states and 2577 transitions. [2024-11-23 23:38:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:38:14,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 181 [2024-11-23 23:38:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:14,346 INFO L225 Difference]: With dead ends: 1628 [2024-11-23 23:38:14,346 INFO L226 Difference]: Without dead ends: 838 [2024-11-23 23:38:14,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:38:14,352 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 7 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4143 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:14,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4143 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:38:14,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-23 23:38:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 836. [2024-11-23 23:38:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 649 states have (on average 1.5947611710323575) internal successors, (1035), 658 states have internal predecessors, (1035), 133 states have call successors, (133), 52 states have call predecessors, (133), 53 states have return successors, (149), 128 states have call predecessors, (149), 132 states have call successors, (149) [2024-11-23 23:38:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1317 transitions. [2024-11-23 23:38:14,440 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1317 transitions. Word has length 181 [2024-11-23 23:38:14,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:14,441 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1317 transitions. [2024-11-23 23:38:14,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-23 23:38:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1317 transitions. [2024-11-23 23:38:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:38:14,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:14,452 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:14,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:38:14,452 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:14,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:14,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2021962515, now seen corresponding path program 1 times [2024-11-23 23:38:14,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:14,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637591462] [2024-11-23 23:38:14,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-23 23:38:14,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637591462] [2024-11-23 23:38:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637591462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411574594] [2024-11-23 23:38:14,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:14,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:14,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:14,703 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:14,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:38:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:15,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:38:15,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 23:38:15,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:15,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411574594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:15,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:15,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-23 23:38:15,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138119979] [2024-11-23 23:38:15,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:15,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:38:15,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:15,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:38:15,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:38:15,275 INFO L87 Difference]: Start difference. First operand 836 states and 1317 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:15,413 INFO L93 Difference]: Finished difference Result 1420 states and 2213 transitions. [2024-11-23 23:38:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:38:15,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2024-11-23 23:38:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:15,422 INFO L225 Difference]: With dead ends: 1420 [2024-11-23 23:38:15,422 INFO L226 Difference]: Without dead ends: 842 [2024-11-23 23:38:15,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:38:15,426 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 1 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:15,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2402 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:38:15,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-23 23:38:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 838. [2024-11-23 23:38:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 650 states have (on average 1.593846153846154) internal successors, (1036), 660 states have internal predecessors, (1036), 133 states have call successors, (133), 52 states have call predecessors, (133), 54 states have return successors, (152), 128 states have call predecessors, (152), 132 states have call successors, (152) [2024-11-23 23:38:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1321 transitions. [2024-11-23 23:38:15,507 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1321 transitions. Word has length 164 [2024-11-23 23:38:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:15,508 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1321 transitions. [2024-11-23 23:38:15,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1321 transitions. [2024-11-23 23:38:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-23 23:38:15,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:15,517 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:15,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:38:15,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:15,718 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:15,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1409062311, now seen corresponding path program 1 times [2024-11-23 23:38:15,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:15,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137316570] [2024-11-23 23:38:15,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:38:16,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:16,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137316570] [2024-11-23 23:38:16,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137316570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:16,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:16,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:38:16,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683414764] [2024-11-23 23:38:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:16,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:38:16,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:16,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:38:16,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:38:16,051 INFO L87 Difference]: Start difference. First operand 838 states and 1321 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-23 23:38:16,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:16,324 INFO L93 Difference]: Finished difference Result 1645 states and 2601 transitions. [2024-11-23 23:38:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:38:16,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 163 [2024-11-23 23:38:16,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:16,333 INFO L225 Difference]: With dead ends: 1645 [2024-11-23 23:38:16,333 INFO L226 Difference]: Without dead ends: 848 [2024-11-23 23:38:16,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:38:16,338 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 5 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:16,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:38:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-23 23:38:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 846. [2024-11-23 23:38:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 656 states have (on average 1.5884146341463414) internal successors, (1042), 667 states have internal predecessors, (1042), 133 states have call successors, (133), 53 states have call predecessors, (133), 56 states have return successors, (158), 128 states have call predecessors, (158), 132 states have call successors, (158) [2024-11-23 23:38:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1333 transitions. [2024-11-23 23:38:16,412 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1333 transitions. Word has length 163 [2024-11-23 23:38:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:16,414 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1333 transitions. [2024-11-23 23:38:16,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-23 23:38:16,415 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1333 transitions. [2024-11-23 23:38:16,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 23:38:16,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:16,423 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:16,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:38:16,424 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:16,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash 711159424, now seen corresponding path program 1 times [2024-11-23 23:38:16,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:16,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320585416] [2024-11-23 23:38:16,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-23 23:38:16,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:16,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320585416] [2024-11-23 23:38:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320585416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:16,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995461978] [2024-11-23 23:38:16,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:16,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:16,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:16,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:16,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:38:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:17,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:38:17,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-23 23:38:17,244 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:38:17,439 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-23 23:38:17,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995461978] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:38:17,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:38:17,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2024-11-23 23:38:17,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267170775] [2024-11-23 23:38:17,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:38:17,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:38:17,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:17,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:38:17,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:17,446 INFO L87 Difference]: Start difference. First operand 846 states and 1333 transitions. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-23 23:38:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:17,891 INFO L93 Difference]: Finished difference Result 2083 states and 3393 transitions. [2024-11-23 23:38:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:38:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 185 [2024-11-23 23:38:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:17,905 INFO L225 Difference]: With dead ends: 2083 [2024-11-23 23:38:17,905 INFO L226 Difference]: Without dead ends: 1492 [2024-11-23 23:38:17,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:38:17,910 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 428 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:17,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 4679 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:38:17,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-11-23 23:38:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1456. [2024-11-23 23:38:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1147 states have (on average 1.6451612903225807) internal successors, (1887), 1150 states have internal predecessors, (1887), 256 states have call successors, (256), 52 states have call predecessors, (256), 52 states have return successors, (295), 256 states have call predecessors, (295), 255 states have call successors, (295) [2024-11-23 23:38:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2438 transitions. [2024-11-23 23:38:18,041 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2438 transitions. Word has length 185 [2024-11-23 23:38:18,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:18,041 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2438 transitions. [2024-11-23 23:38:18,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-23 23:38:18,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2438 transitions. [2024-11-23 23:38:18,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-23 23:38:18,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:18,055 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:18,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:38:18,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:38:18,256 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:18,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:18,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1028636559, now seen corresponding path program 1 times [2024-11-23 23:38:18,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:18,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099446878] [2024-11-23 23:38:18,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 23:38:18,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:18,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099446878] [2024-11-23 23:38:18,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099446878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:18,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:18,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:18,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130081879] [2024-11-23 23:38:18,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:18,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:18,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:18,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:18,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:18,383 INFO L87 Difference]: Start difference. First operand 1456 states and 2438 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:38:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:18,554 INFO L93 Difference]: Finished difference Result 3474 states and 5903 transitions. [2024-11-23 23:38:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:18,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-23 23:38:18,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:18,572 INFO L225 Difference]: With dead ends: 3474 [2024-11-23 23:38:18,572 INFO L226 Difference]: Without dead ends: 2091 [2024-11-23 23:38:18,578 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 [2024-11-23 23:38:18,579 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 124 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:18,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1233 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2024-11-23 23:38:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2081. [2024-11-23 23:38:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 1645 states have (on average 1.6553191489361703) internal successors, (2723), 1642 states have internal predecessors, (2723), 383 states have call successors, (383), 52 states have call predecessors, (383), 52 states have return successors, (445), 389 states have call predecessors, (445), 382 states have call successors, (445) [2024-11-23 23:38:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 3551 transitions. [2024-11-23 23:38:18,752 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 3551 transitions. Word has length 190 [2024-11-23 23:38:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:18,753 INFO L471 AbstractCegarLoop]: Abstraction has 2081 states and 3551 transitions. [2024-11-23 23:38:18,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:38:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 3551 transitions. [2024-11-23 23:38:18,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-23 23:38:18,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:18,773 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:18,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:38:18,773 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:18,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:18,773 INFO L85 PathProgramCache]: Analyzing trace with hash -296914026, now seen corresponding path program 1 times [2024-11-23 23:38:18,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:18,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506804229] [2024-11-23 23:38:18,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:18,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-23 23:38:18,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506804229] [2024-11-23 23:38:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506804229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:18,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:18,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543533938] [2024-11-23 23:38:18,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:18,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:18,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:18,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:18,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:18,900 INFO L87 Difference]: Start difference. First operand 2081 states and 3551 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:19,084 INFO L93 Difference]: Finished difference Result 5244 states and 9044 transitions. [2024-11-23 23:38:19,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:19,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 172 [2024-11-23 23:38:19,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:19,115 INFO L225 Difference]: With dead ends: 5244 [2024-11-23 23:38:19,115 INFO L226 Difference]: Without dead ends: 3291 [2024-11-23 23:38:19,125 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 [2024-11-23 23:38:19,127 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 122 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:19,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:19,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2024-11-23 23:38:19,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 3281. [2024-11-23 23:38:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 2607 states have (on average 1.6682009973149214) internal successors, (4349), 2604 states have internal predecessors, (4349), 621 states have call successors, (621), 52 states have call predecessors, (621), 52 states have return successors, (699), 627 states have call predecessors, (699), 620 states have call successors, (699) [2024-11-23 23:38:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 5669 transitions. [2024-11-23 23:38:19,392 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 5669 transitions. Word has length 172 [2024-11-23 23:38:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:19,392 INFO L471 AbstractCegarLoop]: Abstraction has 3281 states and 5669 transitions. [2024-11-23 23:38:19,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:19,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 5669 transitions. [2024-11-23 23:38:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-23 23:38:19,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:19,424 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:19,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:38:19,424 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:19,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 19003600, now seen corresponding path program 1 times [2024-11-23 23:38:19,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:19,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785539345] [2024-11-23 23:38:19,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:19,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-23 23:38:19,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:19,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785539345] [2024-11-23 23:38:19,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785539345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:19,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099016721] [2024-11-23 23:38:19,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:19,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:19,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:19,796 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:19,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:38:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:20,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:38:20,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-23 23:38:20,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:20,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099016721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:20,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:20,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-23 23:38:20,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771692074] [2024-11-23 23:38:20,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:20,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:20,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:20,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:20,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:20,377 INFO L87 Difference]: Start difference. First operand 3281 states and 5669 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-23 23:38:20,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:20,639 INFO L93 Difference]: Finished difference Result 7856 states and 13696 transitions. [2024-11-23 23:38:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:20,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 186 [2024-11-23 23:38:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:20,681 INFO L225 Difference]: With dead ends: 7856 [2024-11-23 23:38:20,681 INFO L226 Difference]: Without dead ends: 4917 [2024-11-23 23:38:20,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:20,697 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 118 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:20,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:20,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2024-11-23 23:38:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4907. [2024-11-23 23:38:21,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4907 states, 3948 states have (on average 1.674772036474164) internal successors, (6612), 3936 states have internal predecessors, (6612), 906 states have call successors, (906), 52 states have call predecessors, (906), 52 states have return successors, (1031), 921 states have call predecessors, (1031), 905 states have call successors, (1031) [2024-11-23 23:38:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4907 states to 4907 states and 8549 transitions. [2024-11-23 23:38:21,113 INFO L78 Accepts]: Start accepts. Automaton has 4907 states and 8549 transitions. Word has length 186 [2024-11-23 23:38:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:21,114 INFO L471 AbstractCegarLoop]: Abstraction has 4907 states and 8549 transitions. [2024-11-23 23:38:21,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-23 23:38:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4907 states and 8549 transitions. [2024-11-23 23:38:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-23 23:38:21,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:21,156 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:21,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:38:21,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-23 23:38:21,357 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:21,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:21,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1960355474, now seen corresponding path program 1 times [2024-11-23 23:38:21,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:21,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325768566] [2024-11-23 23:38:21,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:21,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:21,936 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 23:38:21,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:21,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325768566] [2024-11-23 23:38:21,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325768566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:21,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505743711] [2024-11-23 23:38:21,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:21,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:21,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:21,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:21,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:38:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:22,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:38:22,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-23 23:38:22,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:22,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505743711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:22,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:22,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-23 23:38:22,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746105014] [2024-11-23 23:38:22,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:22,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:22,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:22,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:22,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:22,645 INFO L87 Difference]: Start difference. First operand 4907 states and 8549 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:38:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:22,948 INFO L93 Difference]: Finished difference Result 11897 states and 20902 transitions. [2024-11-23 23:38:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:22,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 206 [2024-11-23 23:38:22,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:23,035 INFO L225 Difference]: With dead ends: 11897 [2024-11-23 23:38:23,036 INFO L226 Difference]: Without dead ends: 7596 [2024-11-23 23:38:23,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:23,062 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 116 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:23,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2024-11-23 23:38:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 7586. [2024-11-23 23:38:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6187 states have (on average 1.6806206562146435) internal successors, (10398), 6163 states have internal predecessors, (10398), 1346 states have call successors, (1346), 52 states have call predecessors, (1346), 52 states have return successors, (1550), 1373 states have call predecessors, (1550), 1345 states have call successors, (1550) [2024-11-23 23:38:23,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 13294 transitions. [2024-11-23 23:38:23,716 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 13294 transitions. Word has length 206 [2024-11-23 23:38:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:23,717 INFO L471 AbstractCegarLoop]: Abstraction has 7586 states and 13294 transitions. [2024-11-23 23:38:23,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:38:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 13294 transitions. [2024-11-23 23:38:23,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-23 23:38:23,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:23,778 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:23,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 23:38:23,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 23:38:23,979 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:23,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:23,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2133218511, now seen corresponding path program 1 times [2024-11-23 23:38:23,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:23,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544235646] [2024-11-23 23:38:23,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:23,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 23:38:24,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544235646] [2024-11-23 23:38:24,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544235646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:24,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:24,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:24,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779169634] [2024-11-23 23:38:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:24,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:24,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:24,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:24,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:24,091 INFO L87 Difference]: Start difference. First operand 7586 states and 13294 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:38:24,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:24,611 INFO L93 Difference]: Finished difference Result 19267 states and 33967 transitions. [2024-11-23 23:38:24,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:24,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2024-11-23 23:38:24,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:24,684 INFO L225 Difference]: With dead ends: 19267 [2024-11-23 23:38:24,684 INFO L226 Difference]: Without dead ends: 12566 [2024-11-23 23:38:24,714 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 [2024-11-23 23:38:24,715 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 116 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:24,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1225 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:24,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12566 states. [2024-11-23 23:38:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12566 to 12556. [2024-11-23 23:38:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12556 states, 10247 states have (on average 1.6772713965062944) internal successors, (17187), 10208 states have internal predecessors, (17187), 2256 states have call successors, (2256), 52 states have call predecessors, (2256), 52 states have return successors, (2599), 2298 states have call predecessors, (2599), 2255 states have call successors, (2599) [2024-11-23 23:38:25,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12556 states to 12556 states and 22042 transitions. [2024-11-23 23:38:25,603 INFO L78 Accepts]: Start accepts. Automaton has 12556 states and 22042 transitions. Word has length 194 [2024-11-23 23:38:25,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:25,604 INFO L471 AbstractCegarLoop]: Abstraction has 12556 states and 22042 transitions. [2024-11-23 23:38:25,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:38:25,605 INFO L276 IsEmpty]: Start isEmpty. Operand 12556 states and 22042 transitions. [2024-11-23 23:38:25,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-23 23:38:25,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:25,687 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:25,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:38:25,688 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:25,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash 79267601, now seen corresponding path program 1 times [2024-11-23 23:38:25,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:25,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840640466] [2024-11-23 23:38:25,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:25,791 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-23 23:38:25,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:25,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840640466] [2024-11-23 23:38:25,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840640466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:25,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:25,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748114757] [2024-11-23 23:38:25,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:25,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:25,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:25,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:25,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:25,797 INFO L87 Difference]: Start difference. First operand 12556 states and 22042 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:26,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:26,706 INFO L93 Difference]: Finished difference Result 33159 states and 58487 transitions. [2024-11-23 23:38:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:26,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2024-11-23 23:38:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:26,868 INFO L225 Difference]: With dead ends: 33159 [2024-11-23 23:38:26,868 INFO L226 Difference]: Without dead ends: 21946 [2024-11-23 23:38:26,925 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 [2024-11-23 23:38:26,927 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 114 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:26,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:26,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21946 states. [2024-11-23 23:38:28,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21946 to 21936. [2024-11-23 23:38:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21936 states, 17983 states have (on average 1.677751209475616) internal successors, (30171), 17944 states have internal predecessors, (30171), 3900 states have call successors, (3900), 52 states have call predecessors, (3900), 52 states have return successors, (4432), 3942 states have call predecessors, (4432), 3899 states have call successors, (4432) [2024-11-23 23:38:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21936 states to 21936 states and 38503 transitions. [2024-11-23 23:38:28,698 INFO L78 Accepts]: Start accepts. Automaton has 21936 states and 38503 transitions. Word has length 176 [2024-11-23 23:38:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:28,699 INFO L471 AbstractCegarLoop]: Abstraction has 21936 states and 38503 transitions. [2024-11-23 23:38:28,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:38:28,699 INFO L276 IsEmpty]: Start isEmpty. Operand 21936 states and 38503 transitions. [2024-11-23 23:38:28,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 23:38:28,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:28,819 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:28,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:38:28,819 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:28,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2033594117, now seen corresponding path program 1 times [2024-11-23 23:38:28,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:28,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470062704] [2024-11-23 23:38:28,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:28,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-23 23:38:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:28,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470062704] [2024-11-23 23:38:28,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470062704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:28,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942475340] [2024-11-23 23:38:28,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:28,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:28,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:28,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:28,979 INFO L87 Difference]: Start difference. First operand 21936 states and 38503 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-23 23:38:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:29,834 INFO L93 Difference]: Finished difference Result 39981 states and 70299 transitions. [2024-11-23 23:38:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:29,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 208 [2024-11-23 23:38:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:30,145 INFO L225 Difference]: With dead ends: 39981 [2024-11-23 23:38:30,145 INFO L226 Difference]: Without dead ends: 21946 [2024-11-23 23:38:30,190 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 [2024-11-23 23:38:30,191 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 123 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:30,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1388 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:30,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21946 states. [2024-11-23 23:38:31,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21946 to 21936. [2024-11-23 23:38:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21936 states, 17983 states have (on average 1.670021687148974) internal successors, (30032), 17944 states have internal predecessors, (30032), 3900 states have call successors, (3900), 52 states have call predecessors, (3900), 52 states have return successors, (4432), 3942 states have call predecessors, (4432), 3899 states have call successors, (4432) [2024-11-23 23:38:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21936 states to 21936 states and 38364 transitions. [2024-11-23 23:38:31,588 INFO L78 Accepts]: Start accepts. Automaton has 21936 states and 38364 transitions. Word has length 208 [2024-11-23 23:38:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:31,589 INFO L471 AbstractCegarLoop]: Abstraction has 21936 states and 38364 transitions. [2024-11-23 23:38:31,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-23 23:38:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 21936 states and 38364 transitions. [2024-11-23 23:38:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-23 23:38:31,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:31,726 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:31,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:38:31,726 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:31,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:31,727 INFO L85 PathProgramCache]: Analyzing trace with hash -935496811, now seen corresponding path program 1 times [2024-11-23 23:38:31,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:31,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280950197] [2024-11-23 23:38:31,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 23:38:32,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:32,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280950197] [2024-11-23 23:38:32,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280950197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:32,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264440869] [2024-11-23 23:38:32,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:32,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:32,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:32,085 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:32,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:38:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:32,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:38:32,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-23 23:38:32,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:32,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264440869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:32,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:32,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-23 23:38:32,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590221897] [2024-11-23 23:38:32,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:32,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:32,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:32,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:32,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:32,709 INFO L87 Difference]: Start difference. First operand 21936 states and 38364 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:38:34,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:34,271 INFO L93 Difference]: Finished difference Result 53504 states and 93465 transitions. [2024-11-23 23:38:34,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 209 [2024-11-23 23:38:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:34,468 INFO L225 Difference]: With dead ends: 53504 [2024-11-23 23:38:34,468 INFO L226 Difference]: Without dead ends: 34435 [2024-11-23 23:38:34,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:34,522 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 110 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:34,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1198 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:34,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34435 states. [2024-11-23 23:38:36,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34435 to 34425. [2024-11-23 23:38:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34425 states, 28141 states have (on average 1.6436871468675598) internal successors, (46255), 28084 states have internal predecessors, (46255), 6231 states have call successors, (6231), 52 states have call predecessors, (6231), 52 states have return successors, (7182), 6291 states have call predecessors, (7182), 6230 states have call successors, (7182) [2024-11-23 23:38:36,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34425 states to 34425 states and 59668 transitions. [2024-11-23 23:38:36,636 INFO L78 Accepts]: Start accepts. Automaton has 34425 states and 59668 transitions. Word has length 209 [2024-11-23 23:38:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:36,637 INFO L471 AbstractCegarLoop]: Abstraction has 34425 states and 59668 transitions. [2024-11-23 23:38:36,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:38:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 34425 states and 59668 transitions. [2024-11-23 23:38:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-23 23:38:36,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:36,845 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:36,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 23:38:37,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:37,047 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:37,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2122290099, now seen corresponding path program 1 times [2024-11-23 23:38:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900273182] [2024-11-23 23:38:37,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-23 23:38:37,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:37,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900273182] [2024-11-23 23:38:37,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900273182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:38:37,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581892432] [2024-11-23 23:38:37,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:37,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:37,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:38:37,614 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:38:37,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:38:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:38,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:38:38,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-23 23:38:38,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:38:38,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581892432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:38,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:38:38,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-23 23:38:38,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815730885] [2024-11-23 23:38:38,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:38,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:38,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:38,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:38,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:38,294 INFO L87 Difference]: Start difference. First operand 34425 states and 59668 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:38:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:40,441 INFO L93 Difference]: Finished difference Result 92961 states and 161674 transitions. [2024-11-23 23:38:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:40,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2024-11-23 23:38:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:41,031 INFO L225 Difference]: With dead ends: 92961 [2024-11-23 23:38:41,032 INFO L226 Difference]: Without dead ends: 62172 [2024-11-23 23:38:41,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:38:41,158 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 108 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:41,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:41,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62172 states. [2024-11-23 23:38:44,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62172 to 62162. [2024-11-23 23:38:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62162 states, 51078 states have (on average 1.639218450213399) internal successors, (83728), 51000 states have internal predecessors, (83728), 11031 states have call successors, (11031), 52 states have call predecessors, (11031), 52 states have return successors, (12789), 11112 states have call predecessors, (12789), 11030 states have call successors, (12789) [2024-11-23 23:38:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62162 states to 62162 states and 107548 transitions. [2024-11-23 23:38:45,052 INFO L78 Accepts]: Start accepts. Automaton has 62162 states and 107548 transitions. Word has length 210 [2024-11-23 23:38:45,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:45,053 INFO L471 AbstractCegarLoop]: Abstraction has 62162 states and 107548 transitions. [2024-11-23 23:38:45,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:38:45,053 INFO L276 IsEmpty]: Start isEmpty. Operand 62162 states and 107548 transitions. [2024-11-23 23:38:45,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-23 23:38:45,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:45,365 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:45,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:38:45,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86299c99-252e-48db-97f1-ae83a2bd8d88/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:38:45,570 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:45,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1112326763, now seen corresponding path program 1 times [2024-11-23 23:38:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:45,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795897923] [2024-11-23 23:38:45,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:45,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-23 23:38:45,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:45,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795897923] [2024-11-23 23:38:45,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795897923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:45,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:45,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:45,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196302205] [2024-11-23 23:38:45,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:45,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:45,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:45,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:45,717 INFO L87 Difference]: Start difference. First operand 62162 states and 107548 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:38:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:38:49,393 INFO L93 Difference]: Finished difference Result 172445 states and 298618 transitions. [2024-11-23 23:38:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:38:49,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2024-11-23 23:38:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:38:50,260 INFO L225 Difference]: With dead ends: 172445 [2024-11-23 23:38:50,260 INFO L226 Difference]: Without dead ends: 115636 [2024-11-23 23:38:50,425 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 [2024-11-23 23:38:50,427 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 108 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:38:50,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1217 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:38:50,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115636 states. [2024-11-23 23:38:55,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115636 to 115626. [2024-11-23 23:38:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115626 states, 95522 states have (on average 1.6335922614685623) internal successors, (156044), 95444 states have internal predecessors, (156044), 20051 states have call successors, (20051), 52 states have call predecessors, (20051), 52 states have return successors, (22873), 20132 states have call predecessors, (22873), 20050 states have call successors, (22873) [2024-11-23 23:38:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115626 states to 115626 states and 198968 transitions. [2024-11-23 23:38:56,527 INFO L78 Accepts]: Start accepts. Automaton has 115626 states and 198968 transitions. Word has length 198 [2024-11-23 23:38:56,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:38:56,528 INFO L471 AbstractCegarLoop]: Abstraction has 115626 states and 198968 transitions. [2024-11-23 23:38:56,528 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) [2024-11-23 23:38:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 115626 states and 198968 transitions. [2024-11-23 23:38:57,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-23 23:38:57,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:38:57,136 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:38:57,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:38:57,136 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:38:57,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:38:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash 178698896, now seen corresponding path program 1 times [2024-11-23 23:38:57,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:38:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873968748] [2024-11-23 23:38:57,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:38:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:38:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:38:57,265 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-23 23:38:57,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:38:57,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873968748] [2024-11-23 23:38:57,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873968748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:38:57,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:38:57,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:38:57,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919890141] [2024-11-23 23:38:57,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:38:57,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:38:57,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:38:57,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:38:57,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:38:57,268 INFO L87 Difference]: Start difference. First operand 115626 states and 198968 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-23 23:39:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:39:03,464 INFO L93 Difference]: Finished difference Result 217593 states and 375129 transitions. [2024-11-23 23:39:03,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:39:03,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 180 [2024-11-23 23:39:03,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:39:05,014 INFO L225 Difference]: With dead ends: 217593 [2024-11-23 23:39:05,014 INFO L226 Difference]: Without dead ends: 217260 [2024-11-23 23:39:05,119 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 [2024-11-23 23:39:05,121 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 103 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:39:05,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1222 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:39:05,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217260 states.