./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme --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 9b6f1572bb543b70f7bd76f4bd7f000d1e6bbc46b09feb0ab48e04376b774bb9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:31,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:31,856 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:53:31,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:31,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:31,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:31,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:31,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:31,889 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:53:31,889 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:53:31,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:31,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:31,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:31,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:31,893 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:31,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:31,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:53:31,894 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:31,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:31,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:31,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:31,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:53:31,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:31,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:53:31,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:31,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:53:31,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:31,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:31,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:31,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:53:31,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:31,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:31,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:31,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:31,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:53:31,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:31,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:31,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:31,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:31,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:53:31,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:31,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:31,905 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f1572bb543b70f7bd76f4bd7f000d1e6bbc46b09feb0ab48e04376b774bb9 [2023-11-26 11:53:32,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:32,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:32,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:32,195 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:32,196 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:32,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/email_spec8_product34.cil.c [2023-11-26 11:53:35,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:53:35,756 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:53:35,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/sv-benchmarks/c/product-lines/email_spec8_product34.cil.c [2023-11-26 11:53:35,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/data/06a5ef35d/779c9e2a07404c63b71ee4e83f32b5af/FLAGf68b09ee0 [2023-11-26 11:53:35,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/data/06a5ef35d/779c9e2a07404c63b71ee4e83f32b5af [2023-11-26 11:53:35,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:53:35,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:53:35,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:35,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:53:35,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:53:35,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:35" (1/1) ... [2023-11-26 11:53:35,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3cd560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:35, skipping insertion in model container [2023-11-26 11:53:35,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:35" (1/1) ... [2023-11-26 11:53:35,915 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:53:36,329 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/sv-benchmarks/c/product-lines/email_spec8_product34.cil.c[28285,28298] [2023-11-26 11:53:36,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:36,626 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:53:36,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-11-26 11:53:36,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2023-11-26 11:53:36,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [115] [2023-11-26 11:53:36,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1195] [2023-11-26 11:53:36,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1204] [2023-11-26 11:53:36,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1248] [2023-11-26 11:53:36,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1614] [2023-11-26 11:53:36,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1919] [2023-11-26 11:53:36,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2334] [2023-11-26 11:53:36,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2733] [2023-11-26 11:53:36,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2952] [2023-11-26 11:53:36,676 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/sv-benchmarks/c/product-lines/email_spec8_product34.cil.c[28285,28298] [2023-11-26 11:53:36,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:36,787 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:53:36,793 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:53:36,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36 WrapperNode [2023-11-26 11:53:36,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:36,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:36,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:53:36,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:53:36,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:36,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:36,944 INFO L138 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1138 [2023-11-26 11:53:36,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:36,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:53:36,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:53:36,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:53:36,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:36,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:36,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,032 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]. [2023-11-26 11:53:37,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:53:37,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:53:37,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:53:37,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:53:37,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (1/1) ... [2023-11-26 11:53:37,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:37,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:37,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:53:37,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:53:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-26 11:53:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-26 11:53:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-26 11:53:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-26 11:53:37,253 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-26 11:53:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-26 11:53:37,254 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-26 11:53:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-26 11:53:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-26 11:53:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-26 11:53:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-26 11:53:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-26 11:53:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-26 11:53:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-26 11:53:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-26 11:53:37,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-26 11:53:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-26 11:53:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-26 11:53:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-26 11:53:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-26 11:53:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-26 11:53:37,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-26 11:53:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-26 11:53:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-26 11:53:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-26 11:53:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-26 11:53:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-26 11:53:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-26 11:53:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-26 11:53:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:53:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-26 11:53:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-26 11:53:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-26 11:53:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-26 11:53:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-26 11:53:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-26 11:53:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-26 11:53:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-26 11:53:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-26 11:53:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-26 11:53:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-26 11:53:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-26 11:53:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-26 11:53:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-26 11:53:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-26 11:53:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-26 11:53:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-26 11:53:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-26 11:53:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-26 11:53:37,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-26 11:53:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-26 11:53:37,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-26 11:53:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-26 11:53:37,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-26 11:53:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:53:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:53:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:53:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:53:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-26 11:53:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-26 11:53:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-26 11:53:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-26 11:53:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:53:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:53:37,567 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:53:37,572 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:53:38,584 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:53:38,688 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:53:38,689 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:53:38,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:38 BoogieIcfgContainer [2023-11-26 11:53:38,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:53:38,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:53:38,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:53:38,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:53:38,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:53:35" (1/3) ... [2023-11-26 11:53:38,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330da232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:38, skipping insertion in model container [2023-11-26 11:53:38,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:36" (2/3) ... [2023-11-26 11:53:38,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330da232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:38, skipping insertion in model container [2023-11-26 11:53:38,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:38" (3/3) ... [2023-11-26 11:53:38,699 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product34.cil.c [2023-11-26 11:53:38,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:53:38,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:53:38,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:53:38,793 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@6df776b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:53:38,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:53:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 415 states, 314 states have (on average 1.5923566878980893) internal successors, (500), 319 states have internal predecessors, (500), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-26 11:53:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:53:38,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:38,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:38,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:38,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:38,835 INFO L85 PathProgramCache]: Analyzing trace with hash -56840116, now seen corresponding path program 1 times [2023-11-26 11:53:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:38,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338536871] [2023-11-26 11:53:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:53:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:53:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:53:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:53:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:53:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:53:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:53:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:53:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:53:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:53:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 11:53:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:53:39,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:39,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338536871] [2023-11-26 11:53:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338536871] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:53:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492265780] [2023-11-26 11:53:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:39,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:39,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:39,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:53:40,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:53:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:40,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:53:40,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:53:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:53:40,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:53:40,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492265780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:40,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:53:40,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-26 11:53:40,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143620193] [2023-11-26 11:53:40,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:40,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:53:40,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:40,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:53:40,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:53:40,519 INFO L87 Difference]: Start difference. First operand has 415 states, 314 states have (on average 1.5923566878980893) internal successors, (500), 319 states have internal predecessors, (500), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:53:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:40,719 INFO L93 Difference]: Finished difference Result 646 states and 983 transitions. [2023-11-26 11:53:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:53:40,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2023-11-26 11:53:40,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:40,748 INFO L225 Difference]: With dead ends: 646 [2023-11-26 11:53:40,751 INFO L226 Difference]: Without dead ends: 412 [2023-11-26 11:53:40,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:53:40,767 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 619 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:53:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-26 11:53:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2023-11-26 11:53:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 312 states have (on average 1.580128205128205) internal successors, (493), 316 states have internal predecessors, (493), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-26 11:53:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 634 transitions. [2023-11-26 11:53:40,856 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 634 transitions. Word has length 104 [2023-11-26 11:53:40,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:40,858 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 634 transitions. [2023-11-26 11:53:40,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:53:40,859 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 634 transitions. [2023-11-26 11:53:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:53:40,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:40,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:40,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 11:53:41,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:41,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:41,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:41,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1517196704, now seen corresponding path program 1 times [2023-11-26 11:53:41,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:41,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069917040] [2023-11-26 11:53:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:41,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:53:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:53:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:53:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:53:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:53:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:53:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:53:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-26 11:53:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:53:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-26 11:53:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:53:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:53:41,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:41,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069917040] [2023-11-26 11:53:41,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069917040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:53:41,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109735398] [2023-11-26 11:53:41,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:41,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:41,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:41,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:53:41,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:53:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:41,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:53:41,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:53:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:53:41,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:53:41,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109735398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:41,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:53:41,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-26 11:53:41,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375996413] [2023-11-26 11:53:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:41,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:41,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:41,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:53:41,981 INFO L87 Difference]: Start difference. First operand 412 states and 634 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:53:42,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:42,078 INFO L93 Difference]: Finished difference Result 642 states and 967 transitions. [2023-11-26 11:53:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:42,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-11-26 11:53:42,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:42,084 INFO L225 Difference]: With dead ends: 642 [2023-11-26 11:53:42,084 INFO L226 Difference]: Without dead ends: 414 [2023-11-26 11:53:42,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:53:42,087 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 0 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:42,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1231 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:53:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2023-11-26 11:53:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2023-11-26 11:53:42,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 314 states have (on average 1.5764331210191083) internal successors, (495), 318 states have internal predecessors, (495), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-26 11:53:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 636 transitions. [2023-11-26 11:53:42,122 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 636 transitions. Word has length 105 [2023-11-26 11:53:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:42,123 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 636 transitions. [2023-11-26 11:53:42,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:53:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 636 transitions. [2023-11-26 11:53:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-26 11:53:42,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:42,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:42,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:53:42,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:42,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:42,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:42,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1398738972, now seen corresponding path program 1 times [2023-11-26 11:53:42,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:42,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342450723] [2023-11-26 11:53:42,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:42,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:53:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:53:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:53:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:53:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:53:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:53:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:53:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:53:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:53:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 11:53:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:53:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:53:42,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:42,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342450723] [2023-11-26 11:53:42,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342450723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:53:42,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576287876] [2023-11-26 11:53:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:42,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:42,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:42,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:53:42,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:53:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:53:43,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:53:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-26 11:53:43,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:53:43,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576287876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:43,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:53:43,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-26 11:53:43,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027399057] [2023-11-26 11:53:43,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:43,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:43,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:43,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:43,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:53:43,048 INFO L87 Difference]: Start difference. First operand 414 states and 636 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:53:43,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:43,127 INFO L93 Difference]: Finished difference Result 876 states and 1364 transitions. [2023-11-26 11:53:43,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:43,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2023-11-26 11:53:43,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:43,133 INFO L225 Difference]: With dead ends: 876 [2023-11-26 11:53:43,133 INFO L226 Difference]: Without dead ends: 484 [2023-11-26 11:53:43,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:53:43,136 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 129 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:43,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1192 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:53:43,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-26 11:53:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 479. [2023-11-26 11:53:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 365 states have (on average 1.5945205479452054) internal successors, (582), 369 states have internal predecessors, (582), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-26 11:53:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 751 transitions. [2023-11-26 11:53:43,171 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 751 transitions. Word has length 110 [2023-11-26 11:53:43,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:43,171 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 751 transitions. [2023-11-26 11:53:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:53:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 751 transitions. [2023-11-26 11:53:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-26 11:53:43,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:43,176 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:43,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 11:53:43,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:43,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:43,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2021281014, now seen corresponding path program 1 times [2023-11-26 11:53:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616290328] [2023-11-26 11:53:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:43,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:53:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:53:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:53:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:53:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:53:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:53:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:53:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:53:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:53:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 11:53:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-26 11:53:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:53:43,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:43,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616290328] [2023-11-26 11:53:43,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616290328] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:53:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387784211] [2023-11-26 11:53:43,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:43,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:43,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:43,784 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:53:43,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:53:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:44,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:53:44,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:53:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:53:44,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:53:44,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387784211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:44,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:53:44,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-26 11:53:44,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453929027] [2023-11-26 11:53:44,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:44,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:53:44,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:53:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:53:44,245 INFO L87 Difference]: Start difference. First operand 479 states and 751 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:44,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:44,419 INFO L93 Difference]: Finished difference Result 953 states and 1496 transitions. [2023-11-26 11:53:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:53:44,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2023-11-26 11:53:44,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:44,425 INFO L225 Difference]: With dead ends: 953 [2023-11-26 11:53:44,426 INFO L226 Difference]: Without dead ends: 481 [2023-11-26 11:53:44,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:53:44,430 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 8 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:44,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2417 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:53:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-26 11:53:44,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2023-11-26 11:53:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 366 states have (on average 1.592896174863388) internal successors, (583), 371 states have internal predecessors, (583), 85 states have call successors, (85), 28 states have call predecessors, (85), 29 states have return successors, (86), 83 states have call predecessors, (86), 84 states have call successors, (86) [2023-11-26 11:53:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 754 transitions. [2023-11-26 11:53:44,463 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 754 transitions. Word has length 111 [2023-11-26 11:53:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:44,464 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 754 transitions. [2023-11-26 11:53:44,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 754 transitions. [2023-11-26 11:53:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-26 11:53:44,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:44,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-11-26 11:53:44,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:53:44,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:44,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:44,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:44,678 INFO L85 PathProgramCache]: Analyzing trace with hash -721158848, now seen corresponding path program 1 times [2023-11-26 11:53:44,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:44,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985902587] [2023-11-26 11:53:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:44,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:44,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:53:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-26 11:53:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:53:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:53:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:53:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:53:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:53:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:53:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:53:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:53:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 11:53:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:53:45,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985902587] [2023-11-26 11:53:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985902587] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:53:45,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919944519] [2023-11-26 11:53:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:45,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:45,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:45,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:53:45,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:53:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:45,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:53:45,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:53:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:53:45,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:53:45,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919944519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:45,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:53:45,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-26 11:53:45,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745092714] [2023-11-26 11:53:45,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:45,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:53:45,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:45,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:53:45,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:53:45,639 INFO L87 Difference]: Start difference. First operand 481 states and 754 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:45,820 INFO L93 Difference]: Finished difference Result 955 states and 1501 transitions. [2023-11-26 11:53:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:53:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-11-26 11:53:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:45,826 INFO L225 Difference]: With dead ends: 955 [2023-11-26 11:53:45,826 INFO L226 Difference]: Without dead ends: 483 [2023-11-26 11:53:45,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:53:45,830 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 8 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:45,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2403 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:53:45,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-26 11:53:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2023-11-26 11:53:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 367 states have (on average 1.5912806539509536) internal successors, (584), 373 states have internal predecessors, (584), 85 states have call successors, (85), 28 states have call predecessors, (85), 30 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2023-11-26 11:53:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 760 transitions. [2023-11-26 11:53:45,865 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 760 transitions. Word has length 112 [2023-11-26 11:53:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:45,866 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 760 transitions. [2023-11-26 11:53:45,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 760 transitions. [2023-11-26 11:53:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-26 11:53:45,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:45,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:53:45,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:53:46,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:53:46,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:46,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:46,081 INFO L85 PathProgramCache]: Analyzing trace with hash 220388567, now seen corresponding path program 1 times [2023-11-26 11:53:46,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:46,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573248444] [2023-11-26 11:53:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:46,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:53:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:53:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 11:53:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:53:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:53:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:53:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:53:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 11:53:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:53:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 11:53:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-26 11:53:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:53:46,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:46,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573248444] [2023-11-26 11:53:46,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573248444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:46,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:46,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:53:46,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904823341] [2023-11-26 11:53:46,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:46,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:53:46,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:46,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:53:46,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:53:46,414 INFO L87 Difference]: Start difference. First operand 483 states and 760 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:49,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:49,872 INFO L93 Difference]: Finished difference Result 1110 states and 1778 transitions. [2023-11-26 11:53:49,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:53:49,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2023-11-26 11:53:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:49,883 INFO L225 Difference]: With dead ends: 1110 [2023-11-26 11:53:49,883 INFO L226 Difference]: Without dead ends: 646 [2023-11-26 11:53:49,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:53:49,891 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1530 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:49,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1192 Invalid, 3480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [609 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-26 11:53:49,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-26 11:53:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 483. [2023-11-26 11:53:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 367 states have (on average 1.5912806539509536) internal successors, (584), 373 states have internal predecessors, (584), 85 states have call successors, (85), 28 states have call predecessors, (85), 30 states have return successors, (90), 83 states have call predecessors, (90), 84 states have call successors, (90) [2023-11-26 11:53:49,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 759 transitions. [2023-11-26 11:53:49,987 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 759 transitions. Word has length 113 [2023-11-26 11:53:49,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:49,988 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 759 transitions. [2023-11-26 11:53:49,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:49,988 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 759 transitions. [2023-11-26 11:53:49,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 11:53:49,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:49,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:53:49,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:53:49,993 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:49,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:49,994 INFO L85 PathProgramCache]: Analyzing trace with hash -303258197, now seen corresponding path program 2 times [2023-11-26 11:53:49,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:49,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557141865] [2023-11-26 11:53:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:49,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:53:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:53:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:53:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 11:53:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:53:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:53:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-26 11:53:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:53:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:53:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:53:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-26 11:53:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:53:50,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:50,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557141865] [2023-11-26 11:53:50,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557141865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:50,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:50,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:53:50,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233766952] [2023-11-26 11:53:50,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:50,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:53:50,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:53:50,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:53:50,316 INFO L87 Difference]: Start difference. First operand 483 states and 759 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:54,007 INFO L93 Difference]: Finished difference Result 1112 states and 1781 transitions. [2023-11-26 11:53:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:53:54,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2023-11-26 11:53:54,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:54,015 INFO L225 Difference]: With dead ends: 1112 [2023-11-26 11:53:54,016 INFO L226 Difference]: Without dead ends: 648 [2023-11-26 11:53:54,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:53:54,020 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1488 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:54,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1194 Invalid, 3574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [548 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-26 11:53:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-11-26 11:53:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 485. [2023-11-26 11:53:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 368 states have (on average 1.5896739130434783) internal successors, (585), 375 states have internal predecessors, (585), 85 states have call successors, (85), 28 states have call predecessors, (85), 31 states have return successors, (92), 83 states have call predecessors, (92), 84 states have call successors, (92) [2023-11-26 11:53:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 762 transitions. [2023-11-26 11:53:54,085 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 762 transitions. Word has length 114 [2023-11-26 11:53:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:54,086 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 762 transitions. [2023-11-26 11:53:54,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-26 11:53:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 762 transitions. [2023-11-26 11:53:54,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-26 11:53:54,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:54,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:53:54,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:53:54,091 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:54,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:54,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1808218140, now seen corresponding path program 1 times [2023-11-26 11:53:54,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:54,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025529422] [2023-11-26 11:53:54,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:53:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:53:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:53:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:53:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 11:53:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:53:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:53:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:53:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:53:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-26 11:53:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-26 11:53:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:53:54,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025529422] [2023-11-26 11:53:54,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025529422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:54,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:54,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:53:54,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610098858] [2023-11-26 11:53:54,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:54,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:53:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:54,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:53:54,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:53:54,407 INFO L87 Difference]: Start difference. First operand 485 states and 762 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-26 11:53:58,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:53:58,821 INFO L93 Difference]: Finished difference Result 1110 states and 1776 transitions. [2023-11-26 11:53:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:53:58,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2023-11-26 11:53:58,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:53:58,828 INFO L225 Difference]: With dead ends: 1110 [2023-11-26 11:53:58,828 INFO L226 Difference]: Without dead ends: 648 [2023-11-26 11:53:58,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-26 11:53:58,832 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1502 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 5501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:53:58,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1651 Invalid, 5501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [597 Valid, 4904 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-26 11:53:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-11-26 11:53:58,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 485. [2023-11-26 11:53:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 368 states have (on average 1.5896739130434783) internal successors, (585), 375 states have internal predecessors, (585), 85 states have call successors, (85), 28 states have call predecessors, (85), 31 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2023-11-26 11:53:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 761 transitions. [2023-11-26 11:53:58,902 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 761 transitions. Word has length 115 [2023-11-26 11:53:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:53:58,903 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 761 transitions. [2023-11-26 11:53:58,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-26 11:53:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 761 transitions. [2023-11-26 11:53:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 11:53:58,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:53:58,907 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:53:58,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:53:58,907 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:53:58,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:58,908 INFO L85 PathProgramCache]: Analyzing trace with hash 665846095, now seen corresponding path program 2 times [2023-11-26 11:53:58,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:58,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657347438] [2023-11-26 11:53:58,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:58,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:53:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:53:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:53:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:53:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:53:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:53:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:53:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:53:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-26 11:53:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:53:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:53:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-26 11:53:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:53:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:53:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:53:59,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:59,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657347438] [2023-11-26 11:53:59,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657347438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:59,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:59,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:53:59,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152647581] [2023-11-26 11:53:59,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:59,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:53:59,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:59,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:53:59,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:53:59,239 INFO L87 Difference]: Start difference. First operand 485 states and 761 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-26 11:54:03,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:03,343 INFO L93 Difference]: Finished difference Result 1112 states and 1782 transitions. [2023-11-26 11:54:03,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:54:03,344 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 116 [2023-11-26 11:54:03,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:03,356 INFO L225 Difference]: With dead ends: 1112 [2023-11-26 11:54:03,357 INFO L226 Difference]: Without dead ends: 650 [2023-11-26 11:54:03,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-26 11:54:03,362 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1487 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4946 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 5524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 4946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:03,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1651 Invalid, 5524 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [578 Valid, 4946 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-26 11:54:03,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-26 11:54:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 487. [2023-11-26 11:54:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 369 states have (on average 1.5880758807588076) internal successors, (586), 377 states have internal predecessors, (586), 85 states have call successors, (85), 28 states have call predecessors, (85), 32 states have return successors, (96), 83 states have call predecessors, (96), 84 states have call successors, (96) [2023-11-26 11:54:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 767 transitions. [2023-11-26 11:54:03,418 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 767 transitions. Word has length 116 [2023-11-26 11:54:03,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:03,418 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 767 transitions. [2023-11-26 11:54:03,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-26 11:54:03,419 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 767 transitions. [2023-11-26 11:54:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-26 11:54:03,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:03,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:54:03,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:54:03,445 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:54:03,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:03,446 INFO L85 PathProgramCache]: Analyzing trace with hash -320284927, now seen corresponding path program 1 times [2023-11-26 11:54:03,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:03,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804915171] [2023-11-26 11:54:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:54:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:54:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:54:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:54:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:54:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:54:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:54:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 11:54:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:54:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:54:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:54:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:54:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:54:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:54:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:03,655 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:03,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:03,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804915171] [2023-11-26 11:54:03,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804915171] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:54:03,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640253471] [2023-11-26 11:54:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:03,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:03,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:03,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:54:03,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:54:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:04,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:54:04,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:54:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:04,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:54:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:04,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640253471] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:54:04,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:54:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-11-26 11:54:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878029720] [2023-11-26 11:54:04,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:54:04,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:54:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:04,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:54:04,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:54:04,169 INFO L87 Difference]: Start difference. First operand 487 states and 767 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-26 11:54:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:07,196 INFO L93 Difference]: Finished difference Result 1298 states and 2159 transitions. [2023-11-26 11:54:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:54:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 117 [2023-11-26 11:54:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:07,207 INFO L225 Difference]: With dead ends: 1298 [2023-11-26 11:54:07,207 INFO L226 Difference]: Without dead ends: 1070 [2023-11-26 11:54:07,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:54:07,210 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1949 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:07,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 1469 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-26 11:54:07,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-11-26 11:54:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 892. [2023-11-26 11:54:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 695 states have (on average 1.6489208633093526) internal successors, (1146), 703 states have internal predecessors, (1146), 164 states have call successors, (164), 28 states have call predecessors, (164), 32 states have return successors, (185), 162 states have call predecessors, (185), 163 states have call successors, (185) [2023-11-26 11:54:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1495 transitions. [2023-11-26 11:54:07,283 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1495 transitions. Word has length 117 [2023-11-26 11:54:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:07,283 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1495 transitions. [2023-11-26 11:54:07,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-26 11:54:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1495 transitions. [2023-11-26 11:54:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-26 11:54:07,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:07,291 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:54:07,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:54:07,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c69c5797-6e3e-4674-8b07-98921c632ca7/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:54:07,498 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:54:07,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash -91984514, now seen corresponding path program 1 times [2023-11-26 11:54:07,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:07,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497784686] [2023-11-26 11:54:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:07,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:54:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:54:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:54:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:54:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:54:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:54:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:54:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:54:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:54:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:54:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:54:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:54:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:54:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-26 11:54:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:07,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:07,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497784686] [2023-11-26 11:54:07,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497784686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:07,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:07,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:54:07,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249577153] [2023-11-26 11:54:07,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:07,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:54:07,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:07,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:54:07,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:07,651 INFO L87 Difference]: Start difference. First operand 892 states and 1495 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:10,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:10,147 INFO L93 Difference]: Finished difference Result 2294 states and 3938 transitions. [2023-11-26 11:54:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:54:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2023-11-26 11:54:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:10,161 INFO L225 Difference]: With dead ends: 2294 [2023-11-26 11:54:10,161 INFO L226 Difference]: Without dead ends: 1462 [2023-11-26 11:54:10,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:54:10,166 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1577 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:10,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 919 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-26 11:54:10,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-11-26 11:54:10,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1294. [2023-11-26 11:54:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1018 states have (on average 1.663064833005894) internal successors, (1693), 1026 states have internal predecessors, (1693), 243 states have call successors, (243), 28 states have call predecessors, (243), 32 states have return successors, (274), 241 states have call predecessors, (274), 242 states have call successors, (274) [2023-11-26 11:54:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 2210 transitions. [2023-11-26 11:54:10,257 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 2210 transitions. Word has length 123 [2023-11-26 11:54:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:10,257 INFO L495 AbstractCegarLoop]: Abstraction has 1294 states and 2210 transitions. [2023-11-26 11:54:10,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 2210 transitions. [2023-11-26 11:54:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-26 11:54:10,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:10,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:54:10,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:54:10,268 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:54:10,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:10,268 INFO L85 PathProgramCache]: Analyzing trace with hash -769616251, now seen corresponding path program 1 times [2023-11-26 11:54:10,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:10,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139248147] [2023-11-26 11:54:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:10,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:54:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:54:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:54:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:54:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:54:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:54:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:54:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-26 11:54:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:54:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:54:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:54:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 11:54:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:54:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-26 11:54:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:10,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:10,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139248147] [2023-11-26 11:54:10,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139248147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:10,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:10,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:54:10,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947728467] [2023-11-26 11:54:10,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:10,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:54:10,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:54:10,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:10,404 INFO L87 Difference]: Start difference. First operand 1294 states and 2210 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:12,757 INFO L93 Difference]: Finished difference Result 3277 states and 5685 transitions. [2023-11-26 11:54:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:54:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2023-11-26 11:54:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:12,777 INFO L225 Difference]: With dead ends: 3277 [2023-11-26 11:54:12,777 INFO L226 Difference]: Without dead ends: 2093 [2023-11-26 11:54:12,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:54:12,784 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1593 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:12,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 890 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-26 11:54:12,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2023-11-26 11:54:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1925. [2023-11-26 11:54:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1530 states have (on average 1.6725490196078432) internal successors, (2559), 1538 states have internal predecessors, (2559), 362 states have call successors, (362), 28 states have call predecessors, (362), 32 states have return successors, (393), 360 states have call predecessors, (393), 361 states have call successors, (393) [2023-11-26 11:54:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 3314 transitions. [2023-11-26 11:54:12,962 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 3314 transitions. Word has length 124 [2023-11-26 11:54:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:12,962 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 3314 transitions. [2023-11-26 11:54:12,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 3314 transitions. [2023-11-26 11:54:12,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-26 11:54:12,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:12,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:54:12,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:54:12,981 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:54:12,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash 422787392, now seen corresponding path program 1 times [2023-11-26 11:54:12,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:12,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555824795] [2023-11-26 11:54:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:54:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:54:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:54:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:54:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:54:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:54:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:54:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:54:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:54:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:54:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:54:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:54:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 11:54:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:54:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:13,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:13,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555824795] [2023-11-26 11:54:13,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555824795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:13,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:13,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:54:13,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981873325] [2023-11-26 11:54:13,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:13,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:54:13,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:13,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:54:13,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:13,160 INFO L87 Difference]: Start difference. First operand 1925 states and 3314 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:15,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:15,516 INFO L93 Difference]: Finished difference Result 4757 states and 8337 transitions. [2023-11-26 11:54:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:54:15,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-11-26 11:54:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:15,541 INFO L225 Difference]: With dead ends: 4757 [2023-11-26 11:54:15,542 INFO L226 Difference]: Without dead ends: 3062 [2023-11-26 11:54:15,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:54:15,549 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1636 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:15,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 877 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-26 11:54:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2023-11-26 11:54:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2894. [2023-11-26 11:54:15,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2337 states have (on average 1.680359435173299) internal successors, (3927), 2345 states have internal predecessors, (3927), 524 states have call successors, (524), 28 states have call predecessors, (524), 32 states have return successors, (571), 522 states have call predecessors, (571), 523 states have call successors, (571) [2023-11-26 11:54:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 5022 transitions. [2023-11-26 11:54:15,724 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 5022 transitions. Word has length 125 [2023-11-26 11:54:15,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:15,724 INFO L495 AbstractCegarLoop]: Abstraction has 2894 states and 5022 transitions. [2023-11-26 11:54:15,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 5022 transitions. [2023-11-26 11:54:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-26 11:54:15,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:15,742 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:54:15,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:54:15,743 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:54:15,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1357111046, now seen corresponding path program 1 times [2023-11-26 11:54:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17018788] [2023-11-26 11:54:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:15,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:54:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:54:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:54:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:54:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:54:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:54:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:54:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:54:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:54:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:54:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:54:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-26 11:54:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 11:54:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 11:54:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:15,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:15,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17018788] [2023-11-26 11:54:15,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17018788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:15,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:15,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:54:15,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241450207] [2023-11-26 11:54:15,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:15,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:54:15,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:54:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:15,879 INFO L87 Difference]: Start difference. First operand 2894 states and 5022 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:18,286 INFO L93 Difference]: Finished difference Result 7097 states and 12542 transitions. [2023-11-26 11:54:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:54:18,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-11-26 11:54:18,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:18,326 INFO L225 Difference]: With dead ends: 7097 [2023-11-26 11:54:18,326 INFO L226 Difference]: Without dead ends: 4630 [2023-11-26 11:54:18,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:54:18,338 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1623 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:18,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 879 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-26 11:54:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2023-11-26 11:54:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 4462. [2023-11-26 11:54:18,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4462 states, 3660 states have (on average 1.6860655737704917) internal successors, (6171), 3668 states have internal predecessors, (6171), 769 states have call successors, (769), 28 states have call predecessors, (769), 32 states have return successors, (842), 767 states have call predecessors, (842), 768 states have call successors, (842) [2023-11-26 11:54:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4462 states to 4462 states and 7782 transitions. [2023-11-26 11:54:18,633 INFO L78 Accepts]: Start accepts. Automaton has 4462 states and 7782 transitions. Word has length 126 [2023-11-26 11:54:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:18,634 INFO L495 AbstractCegarLoop]: Abstraction has 4462 states and 7782 transitions. [2023-11-26 11:54:18,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-26 11:54:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 4462 states and 7782 transitions. [2023-11-26 11:54:18,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-26 11:54:18,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:18,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-26 11:54:18,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:54:18,656 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:54:18,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1810416668, now seen corresponding path program 1 times [2023-11-26 11:54:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:18,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678638777] [2023-11-26 11:54:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:18,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:54:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:54:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:54:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:54:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:54:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:54:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:54:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:54:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:54:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:54:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 11:54:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:54:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 11:54:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 11:54:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,844 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-26 11:54:18,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:18,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678638777] [2023-11-26 11:54:18,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678638777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:18,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:18,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:54:18,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060719107] [2023-11-26 11:54:18,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:18,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:54:18,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:18,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:54:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:18,857 INFO L87 Difference]: Start difference. First operand 4462 states and 7782 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)