./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cc51a90eddcdd1da62e020cc4e0c6e4b67a610d36952c31f8c5cbe15c29949c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:33:25,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:33:25,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:33:25,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:33:25,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:33:25,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:33:25,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:33:25,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:33:25,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:33:25,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:33:25,254 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:33:25,254 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:33:25,255 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:33:25,256 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:33:25,256 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:33:25,256 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:33:25,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:33:25,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:33:25,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:33:25,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:33:25,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:33:25,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:33:25,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:33:25,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:33:25,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:33:25,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:33:25,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:33:25,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:33:25,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:33:25,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:33:25,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:33:25,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:33:25,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:33:25,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:33:25,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:33:25,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:33:25,259 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:33:25,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:33:25,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:33:25,260 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:33:25,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:33:25,260 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cc51a90eddcdd1da62e020cc4e0c6e4b67a610d36952c31f8c5cbe15c29949c [2024-11-13 23:33:25,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:33:25,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:33:25,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:33:25,591 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:33:25,592 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:33:25,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec8_product21.cil.c Unable to find full path for "g++" [2024-11-13 23:33:27,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:33:27,846 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:33:27,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/sv-benchmarks/c/product-lines/email_spec8_product21.cil.c [2024-11-13 23:33:27,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/data/b3efa9030/2cfc61b2988b4c43a7ee43ee1dba2615/FLAG1b93788de [2024-11-13 23:33:28,020 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/data/b3efa9030/2cfc61b2988b4c43a7ee43ee1dba2615 [2024-11-13 23:33:28,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:33:28,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:33:28,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:33:28,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:33:28,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:33:28,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:28" (1/1) ... [2024-11-13 23:33:28,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7342df35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:28, skipping insertion in model container [2024-11-13 23:33:28,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:33:28" (1/1) ... [2024-11-13 23:33:28,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:33:28,663 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/sv-benchmarks/c/product-lines/email_spec8_product21.cil.c[15456,15469] [2024-11-13 23:33:28,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:33:28,996 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:33:29,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-13 23:33:29,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [380] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [492] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [810] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [819] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1038] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1404] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1446] [2024-11-13 23:33:29,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2508] [2024-11-13 23:33:29,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2543] [2024-11-13 23:33:29,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2946] [2024-11-13 23:33:29,056 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/sv-benchmarks/c/product-lines/email_spec8_product21.cil.c[15456,15469] [2024-11-13 23:33:29,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:33:29,220 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:33:29,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29 WrapperNode [2024-11-13 23:33:29,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:33:29,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:33:29,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:33:29,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:33:29,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,331 INFO L138 Inliner]: procedures = 129, calls = 200, calls flagged for inlining = 58, calls inlined = 55, statements flattened = 1076 [2024-11-13 23:33:29,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:33:29,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:33:29,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:33:29,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:33:29,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:33:29,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:33:29,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:33:29,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:33:29,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (1/1) ... [2024-11-13 23:33:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:33:29,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:29,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:33:29,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:33:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-13 23:33:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-13 23:33:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-13 23:33:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-13 23:33:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-13 23:33:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-13 23:33:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-13 23:33:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-13 23:33:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 23:33:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 23:33:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 23:33:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 23:33:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 23:33:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 23:33:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-13 23:33:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-13 23:33:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 23:33:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 23:33:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 23:33:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 23:33:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:33:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-13 23:33:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-13 23:33:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 23:33:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 23:33:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 23:33:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 23:33:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-13 23:33:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 23:33:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-13 23:33:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 23:33:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 23:33:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 23:33:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:33:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 23:33:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 23:33:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-13 23:33:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-13 23:33:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:33:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:33:29,899 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:33:29,902 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:33:31,296 INFO L? ?]: Removed 524 outVars from TransFormulas that were not future-live. [2024-11-13 23:33:31,296 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:33:32,172 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:33:32,173 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:33:32,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:32 BoogieIcfgContainer [2024-11-13 23:33:32,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:33:32,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:33:32,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:33:32,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:33:32,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:33:28" (1/3) ... [2024-11-13 23:33:32,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcdbcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:33:32, skipping insertion in model container [2024-11-13 23:33:32,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:33:29" (2/3) ... [2024-11-13 23:33:32,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcdbcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:33:32, skipping insertion in model container [2024-11-13 23:33:32,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:33:32" (3/3) ... [2024-11-13 23:33:32,185 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product21.cil.c [2024-11-13 23:33:32,201 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:33:32,204 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec8_product21.cil.c that has 22 procedures, 185 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:33:32,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:33:32,290 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65bb0093, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:33:32,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:33:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-13 23:33:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 23:33:32,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:32,311 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 23:33:32,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:32,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash -67376177, now seen corresponding path program 1 times [2024-11-13 23:33:32,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:32,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486601186] [2024-11-13 23:33:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:32,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:33:32,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:32,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486601186] [2024-11-13 23:33:32,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486601186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:32,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:32,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:33:32,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945895517] [2024-11-13 23:33:32,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:32,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:33:32,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:33:32,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:33:32,850 INFO L87 Difference]: Start difference. First operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:33:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:33,024 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2024-11-13 23:33:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:33:33,030 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2024-11-13 23:33:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:33,046 INFO L225 Difference]: With dead ends: 278 [2024-11-13 23:33:33,046 INFO L226 Difference]: Without dead ends: 182 [2024-11-13 23:33:33,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:33:33,055 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:33,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:33:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-13 23:33:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-13 23:33:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-13 23:33:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2024-11-13 23:33:33,168 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 63 [2024-11-13 23:33:33,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:33,170 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2024-11-13 23:33:33,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:33:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2024-11-13 23:33:33,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 23:33:33,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:33,175 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 23:33:33,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:33:33,177 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:33,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:33,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1900721775, now seen corresponding path program 1 times [2024-11-13 23:33:33,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:33,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862280027] [2024-11-13 23:33:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:33,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:33:33,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:33,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862280027] [2024-11-13 23:33:33,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862280027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:33,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:33,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:33:33,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050731972] [2024-11-13 23:33:33,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:33,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:33:33,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:33,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:33:33,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:33:33,588 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:33:33,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:33,773 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions. [2024-11-13 23:33:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:33:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2024-11-13 23:33:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:33,778 INFO L225 Difference]: With dead ends: 274 [2024-11-13 23:33:33,778 INFO L226 Difference]: Without dead ends: 184 [2024-11-13 23:33:33,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:33:33,780 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:33,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:33:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-13 23:33:33,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-13 23:33:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 109 states have internal predecessors, (136), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-13 23:33:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2024-11-13 23:33:33,801 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 64 [2024-11-13 23:33:33,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:33,802 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2024-11-13 23:33:33,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:33:33,802 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2024-11-13 23:33:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 23:33:33,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:33,805 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 23:33:33,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:33:33,805 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:33,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash -507045359, now seen corresponding path program 1 times [2024-11-13 23:33:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:33,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507468186] [2024-11-13 23:33:33,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:33,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:33:33,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:33,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507468186] [2024-11-13 23:33:33,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507468186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:33,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:33,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:33:33,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733467031] [2024-11-13 23:33:33,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:33,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:33:33,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:33,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:33:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:33:33,998 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:33:34,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:34,167 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2024-11-13 23:33:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:33:34,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2024-11-13 23:33:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:34,170 INFO L225 Difference]: With dead ends: 403 [2024-11-13 23:33:34,172 INFO L226 Difference]: Without dead ends: 237 [2024-11-13 23:33:34,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:33:34,174 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 59 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:34,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 424 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:33:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-13 23:33:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2024-11-13 23:33:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 143 states have internal predecessors, (191), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-13 23:33:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 332 transitions. [2024-11-13 23:33:34,217 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 332 transitions. Word has length 69 [2024-11-13 23:33:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:34,218 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 332 transitions. [2024-11-13 23:33:34,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:33:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 332 transitions. [2024-11-13 23:33:34,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 23:33:34,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:34,225 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 23:33:34,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:33:34,225 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:33:34,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:34,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1077152448, now seen corresponding path program 1 times [2024-11-13 23:33:34,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:34,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326320607] [2024-11-13 23:33:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:33:34,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:34,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326320607] [2024-11-13 23:33:34,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326320607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:33:34,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122255926] [2024-11-13 23:33:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:34,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:34,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:34,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:34,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:33:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:34,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:33:34,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:33:35,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:33:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122255926] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:33:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [675076678] [2024-11-13 23:33:35,175 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-13 23:33:35,175 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:35,179 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:35,184 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:35,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:02,989 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-13 23:34:03,214 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2024-11-13 23:34:03,333 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:01,279 WARN L286 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:35:12,673 WARN L286 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 453 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:35:20,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [675076678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:20,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:35:20,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-13 23:35:20,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059312851] [2024-11-13 23:35:20,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:20,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:35:20,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:20,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:35:20,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:35:20,925 INFO L87 Difference]: Start difference. First operand 232 states and 332 transitions. Second operand has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-13 23:35:34,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:34,554 INFO L93 Difference]: Finished difference Result 479 states and 702 transitions. [2024-11-13 23:35:34,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 23:35:34,555 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2024-11-13 23:35:34,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:34,558 INFO L225 Difference]: With dead ends: 479 [2024-11-13 23:35:34,559 INFO L226 Difference]: Without dead ends: 265 [2024-11-13 23:35:34,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 80.9s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:35:34,561 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 26 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:34,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2862 Invalid, 2147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2024-11-13 23:35:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-13 23:35:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 255. [2024-11-13 23:35:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 161 states have (on average 1.391304347826087) internal successors, (224), 165 states have internal predecessors, (224), 71 states have call successors, (71), 22 states have call predecessors, (71), 22 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-13 23:35:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 365 transitions. [2024-11-13 23:35:34,645 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 365 transitions. Word has length 70 [2024-11-13 23:35:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:34,646 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 365 transitions. [2024-11-13 23:35:34,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-13 23:35:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 365 transitions. [2024-11-13 23:35:34,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 23:35:34,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:34,649 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-13 23:35:34,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:35:34,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:34,850 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:34,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -226327342, now seen corresponding path program 1 times [2024-11-13 23:35:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:34,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142898422] [2024-11-13 23:35:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:35:35,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142898422] [2024-11-13 23:35:35,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142898422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:35,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:35:35,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:35:35,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887201625] [2024-11-13 23:35:35,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:35,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:35:35,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:35,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:35:35,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:35:35,026 INFO L87 Difference]: Start difference. First operand 255 states and 365 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 23:35:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:35,249 INFO L93 Difference]: Finished difference Result 613 states and 910 transitions. [2024-11-13 23:35:35,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:35:35,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2024-11-13 23:35:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:35,253 INFO L225 Difference]: With dead ends: 613 [2024-11-13 23:35:35,253 INFO L226 Difference]: Without dead ends: 382 [2024-11-13 23:35:35,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:35:35,255 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 57 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:35,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 435 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:35:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-13 23:35:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 377. [2024-11-13 23:35:35,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 252 states have (on average 1.4444444444444444) internal successors, (364), 256 states have internal predecessors, (364), 102 states have call successors, (102), 22 states have call predecessors, (102), 22 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-13 23:35:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 567 transitions. [2024-11-13 23:35:35,375 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 567 transitions. Word has length 75 [2024-11-13 23:35:35,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:35,375 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 567 transitions. [2024-11-13 23:35:35,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 23:35:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 567 transitions. [2024-11-13 23:35:35,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 23:35:35,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:35,378 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-13 23:35:35,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:35:35,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:35,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:35,379 INFO L85 PathProgramCache]: Analyzing trace with hash 803267140, now seen corresponding path program 1 times [2024-11-13 23:35:35,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:35,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838885133] [2024-11-13 23:35:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:35,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:35:35,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:35,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838885133] [2024-11-13 23:35:35,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838885133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549731189] [2024-11-13 23:35:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:35,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:35,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:35,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:35,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:35:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:35,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:35:35,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:35:35,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:35:36,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549731189] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:36,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1786511113] [2024-11-13 23:35:36,083 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-13 23:35:36,083 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:36,083 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:36,084 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:36,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:36:16,041 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-13 23:36:16,257 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-13 23:36:17,525 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:36:41,784 WARN L286 SmtUtils]: Spent 7.73s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:36:54,155 WARN L286 SmtUtils]: Spent 11.93s on a formula simplification. DAG size of input: 461 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:37:37,602 WARN L286 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 454 DAG size of output: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:37:50,436 WARN L286 SmtUtils]: Spent 11.46s on a formula simplification. DAG size of input: 455 DAG size of output: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:38:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1786511113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:38:13,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:38:13,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-13 23:38:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178983097] [2024-11-13 23:38:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:38:13,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 23:38:13,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:38:13,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 23:38:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:38:13,327 INFO L87 Difference]: Start difference. First operand 377 states and 567 transitions. Second operand has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-13 23:38:31,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:38:31,642 INFO L93 Difference]: Finished difference Result 764 states and 1177 transitions. [2024-11-13 23:38:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 23:38:31,642 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2024-11-13 23:38:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:38:31,646 INFO L225 Difference]: With dead ends: 764 [2024-11-13 23:38:31,646 INFO L226 Difference]: Without dead ends: 450 [2024-11-13 23:38:31,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 119.8s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:38:31,648 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 64 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:38:31,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 2832 Invalid, 2566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-13 23:38:31,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-13 23:38:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 391. [2024-11-13 23:38:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 264 states have (on average 1.4431818181818181) internal successors, (381), 268 states have internal predecessors, (381), 103 states have call successors, (103), 23 states have call predecessors, (103), 23 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-13 23:38:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 586 transitions. [2024-11-13 23:38:31,756 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 586 transitions. Word has length 76 [2024-11-13 23:38:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:38:31,757 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 586 transitions. [2024-11-13 23:38:31,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-13 23:38:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 586 transitions. [2024-11-13 23:38:31,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 23:38:31,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:38:31,760 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 23:38:31,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:38:31,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:38:31,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:38:31,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:38:31,961 INFO L85 PathProgramCache]: Analyzing trace with hash 140879694, now seen corresponding path program 1 times [2024-11-13 23:38:31,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:38:31,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929821395] [2024-11-13 23:38:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:38:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:38:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:38:32,193 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:38:32,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:38:32,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929821395] [2024-11-13 23:38:32,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929821395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:38:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986099440] [2024-11-13 23:38:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:38:32,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:38:32,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:38:32,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:38:32,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:38:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:38:32,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:38:32,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:38:32,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:38:32,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986099440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:32,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [338696938] [2024-11-13 23:38:32,759 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-13 23:38:32,759 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:38:32,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:38:32,760 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:38:32,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:39:38,955 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-13 23:39:39,095 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-13 23:39:40,041 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 492 for LOIs [2024-11-13 23:39:40,850 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 428 for LOIs [2024-11-13 23:39:41,170 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2024-11-13 23:39:41,322 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:40:49,728 WARN L286 SmtUtils]: Spent 13.51s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:41:03,409 WARN L286 SmtUtils]: Spent 12.71s on a formula simplification. DAG size of input: 513 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:41:29,802 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:41:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [338696938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:41:58,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:41:58,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-13 23:41:58,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027463511] [2024-11-13 23:41:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:41:58,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 23:41:58,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:41:58,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 23:41:58,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:41:58,292 INFO L87 Difference]: Start difference. First operand 391 states and 586 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-13 23:42:19,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:19,207 INFO L93 Difference]: Finished difference Result 789 states and 1212 transitions. [2024-11-13 23:42:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 23:42:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2024-11-13 23:42:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:19,211 INFO L225 Difference]: With dead ends: 789 [2024-11-13 23:42:19,211 INFO L226 Difference]: Without dead ends: 475 [2024-11-13 23:42:19,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 140.2s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 23:42:19,213 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 78 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 3469 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:19,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3316 Invalid, 3479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3469 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2024-11-13 23:42:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-13 23:42:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 427. [2024-11-13 23:42:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 294 states have (on average 1.4387755102040816) internal successors, (423), 298 states have internal predecessors, (423), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-13 23:42:19,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 634 transitions. [2024-11-13 23:42:19,352 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 634 transitions. Word has length 79 [2024-11-13 23:42:19,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:19,353 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 634 transitions. [2024-11-13 23:42:19,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-13 23:42:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 634 transitions. [2024-11-13 23:42:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 23:42:19,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:19,356 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 23:42:19,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:42:19,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 23:42:19,560 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:19,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash 491220558, now seen corresponding path program 1 times [2024-11-13 23:42:19,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:19,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972069281] [2024-11-13 23:42:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:19,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:42:19,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:42:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972069281] [2024-11-13 23:42:19,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972069281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:42:19,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494769799] [2024-11-13 23:42:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:19,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:42:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:42:19,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:42:19,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:42:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:20,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:42:20,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:42:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:42:20,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:42:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:42:20,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494769799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:42:20,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [14547138] [2024-11-13 23:42:20,166 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-13 23:42:20,166 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:42:20,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:42:20,166 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:42:20,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:42:55,285 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-13 23:42:55,463 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2024-11-13 23:42:55,596 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:43:53,783 WARN L286 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:44:04,817 WARN L286 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 454 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:44:33,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [14547138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:33,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:33,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-13 23:44:33,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441195377] [2024-11-13 23:44:33,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:33,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:44:33,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:44:33,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:44:33,306 INFO L87 Difference]: Start difference. First operand 427 states and 634 transitions. Second operand has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-13 23:44:48,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:48,451 INFO L93 Difference]: Finished difference Result 790 states and 1201 transitions. [2024-11-13 23:44:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 23:44:48,452 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2024-11-13 23:44:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:48,456 INFO L225 Difference]: With dead ends: 790 [2024-11-13 23:44:48,456 INFO L226 Difference]: Without dead ends: 476 [2024-11-13 23:44:48,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 201 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 101.0s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 23:44:48,458 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:48,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3073 Invalid, 2570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-13 23:44:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-13 23:44:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 447. [2024-11-13 23:44:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 314 states have (on average 1.4426751592356688) internal successors, (453), 318 states have internal predecessors, (453), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-13 23:44:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 664 transitions. [2024-11-13 23:44:48,619 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 664 transitions. Word has length 78 [2024-11-13 23:44:48,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:48,620 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 664 transitions. [2024-11-13 23:44:48,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-13 23:44:48,620 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 664 transitions. [2024-11-13 23:44:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-13 23:44:48,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:48,623 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-13 23:44:48,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 23:44:48,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:48,824 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:48,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2022274719, now seen corresponding path program 1 times [2024-11-13 23:44:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:48,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352074548] [2024-11-13 23:44:48,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:48,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-13 23:44:49,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:49,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352074548] [2024-11-13 23:44:49,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352074548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:49,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:49,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:49,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421851896] [2024-11-13 23:44:49,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:49,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:49,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:49,043 INFO L87 Difference]: Start difference. First operand 447 states and 664 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 23:44:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:49,372 INFO L93 Difference]: Finished difference Result 572 states and 820 transitions. [2024-11-13 23:44:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2024-11-13 23:44:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:49,376 INFO L225 Difference]: With dead ends: 572 [2024-11-13 23:44:49,377 INFO L226 Difference]: Without dead ends: 489 [2024-11-13 23:44:49,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:49,378 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 142 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:49,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 293 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-13 23:44:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 488. [2024-11-13 23:44:49,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 335 states have (on average 1.4208955223880597) internal successors, (476), 341 states have internal predecessors, (476), 118 states have call successors, (118), 36 states have call predecessors, (118), 34 states have return successors, (116), 113 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-13 23:44:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 710 transitions. [2024-11-13 23:44:49,644 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 710 transitions. Word has length 81 [2024-11-13 23:44:49,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:49,645 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 710 transitions. [2024-11-13 23:44:49,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-13 23:44:49,645 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 710 transitions. [2024-11-13 23:44:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 23:44:49,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:49,650 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:49,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 23:44:49,651 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:49,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1830186305, now seen corresponding path program 1 times [2024-11-13 23:44:49,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:49,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103584328] [2024-11-13 23:44:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 23:44:50,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:50,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103584328] [2024-11-13 23:44:50,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103584328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:50,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:50,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 23:44:50,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588950828] [2024-11-13 23:44:50,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:50,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 23:44:50,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:50,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 23:44:50,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:44:50,214 INFO L87 Difference]: Start difference. First operand 488 states and 710 transitions. Second operand has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-13 23:44:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:51,435 INFO L93 Difference]: Finished difference Result 935 states and 1343 transitions. [2024-11-13 23:44:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 23:44:51,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 126 [2024-11-13 23:44:51,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:51,444 INFO L225 Difference]: With dead ends: 935 [2024-11-13 23:44:51,444 INFO L226 Difference]: Without dead ends: 816 [2024-11-13 23:44:51,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:44:51,447 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 327 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:51,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1375 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:44:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-13 23:44:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 809. [2024-11-13 23:44:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 539 states have (on average 1.4341372912801484) internal successors, (773), 550 states have internal predecessors, (773), 210 states have call successors, (210), 63 states have call predecessors, (210), 59 states have return successors, (205), 201 states have call predecessors, (205), 205 states have call successors, (205) [2024-11-13 23:44:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1188 transitions. [2024-11-13 23:44:51,797 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1188 transitions. Word has length 126 [2024-11-13 23:44:51,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:51,799 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1188 transitions. [2024-11-13 23:44:51,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-13 23:44:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1188 transitions. [2024-11-13 23:44:51,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 23:44:51,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:51,806 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:51,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 23:44:51,807 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:51,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1744984912, now seen corresponding path program 1 times [2024-11-13 23:44:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:51,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802936437] [2024-11-13 23:44:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:51,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-13 23:44:52,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802936437] [2024-11-13 23:44:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802936437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:52,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:52,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:52,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594609694] [2024-11-13 23:44:52,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:52,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:44:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:52,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:44:52,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:44:52,177 INFO L87 Difference]: Start difference. First operand 809 states and 1188 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-13 23:44:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:53,198 INFO L93 Difference]: Finished difference Result 1120 states and 1572 transitions. [2024-11-13 23:44:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:53,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 121 [2024-11-13 23:44:53,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:53,206 INFO L225 Difference]: With dead ends: 1120 [2024-11-13 23:44:53,206 INFO L226 Difference]: Without dead ends: 934 [2024-11-13 23:44:53,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:44:53,209 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 203 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:53,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 419 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:44:53,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-13 23:44:53,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 926. [2024-11-13 23:44:53,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 600 states have (on average 1.4066666666666667) internal successors, (844), 619 states have internal predecessors, (844), 245 states have call successors, (245), 82 states have call predecessors, (245), 80 states have return successors, (243), 233 states have call predecessors, (243), 239 states have call successors, (243) [2024-11-13 23:44:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1332 transitions. [2024-11-13 23:44:53,585 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1332 transitions. Word has length 121 [2024-11-13 23:44:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:53,586 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1332 transitions. [2024-11-13 23:44:53,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-13 23:44:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1332 transitions. [2024-11-13 23:44:53,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 23:44:53,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:53,592 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:53,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 23:44:53,593 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:53,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:53,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1407449137, now seen corresponding path program 1 times [2024-11-13 23:44:53,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:53,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957987162] [2024-11-13 23:44:53,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:53,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 23:44:53,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:53,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957987162] [2024-11-13 23:44:53,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957987162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:53,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084510262] [2024-11-13 23:44:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:53,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:53,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:53,934 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:53,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9ba616-71bc-44e0-9899-ba2262b1cee4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:44:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:54,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:44:54,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 23:44:54,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 23:44:54,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084510262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:54,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [348627432] [2024-11-13 23:44:54,918 INFO L159 IcfgInterpreter]: Started Sifa with 101 locations of interest [2024-11-13 23:44:54,918 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:54,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:54,919 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:54,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:50,368 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-13 23:45:50,506 INFO L197 IcfgInterpreter]: Interpreting procedure setClientAddressBookAddress with input of size 458 for LOIs [2024-11-13 23:45:52,271 INFO L197 IcfgInterpreter]: Interpreting procedure setClientAddressBookSize with input of size 430 for LOIs [2024-11-13 23:45:52,501 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2024-11-13 23:45:52,632 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:48,724 WARN L286 SmtUtils]: Spent 9.40s on a formula simplification. DAG size of input: 455 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:47:00,222 WARN L286 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 456 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)