./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product14.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_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/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_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/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_6c37d48a-6a18-42bc-8d74-569644b9db10/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 db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:15:22,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:15:23,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:15:23,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:15:23,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:15:23,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:15:23,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:15:23,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:15:23,041 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:15:23,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:15:23,041 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:15:23,041 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:15:23,041 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:15:23,041 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:15:23,041 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:15:23,041 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:15:23,042 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:15:23,042 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:15:23,042 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:15:23,042 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:15:23,042 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:15:23,042 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:15:23,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:15:23,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:15:23,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:15:23,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:15:23,044 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:15:23,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:15:23,045 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:15:23,045 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:15:23,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:15:23,045 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_6c37d48a-6a18-42bc-8d74-569644b9db10/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 -> db5154a0e253326ecbc6009dd1b2954eaac96f88a97328f2e835902c9850ef53 [2024-11-14 05:15:23,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:15:23,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:15:23,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:15:23,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:15:23,336 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:15:23,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec8_product14.cil.c Unable to find full path for "g++" [2024-11-14 05:15:25,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:15:25,593 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:15:25,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c [2024-11-14 05:15:25,610 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/data/f0f46577a/b2ef1fd9a5534de98e3fd8556ebd2c06/FLAGf2c6a4525 [2024-11-14 05:15:25,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/data/f0f46577a/b2ef1fd9a5534de98e3fd8556ebd2c06 [2024-11-14 05:15:25,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:15:25,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:15:25,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:15:25,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:15:25,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:15:25,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:15:25" (1/1) ... [2024-11-14 05:15:25,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa724a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:25, skipping insertion in model container [2024-11-14 05:15:25,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:15:25" (1/1) ... [2024-11-14 05:15:25,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:15:26,092 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_6c37d48a-6a18-42bc-8d74-569644b9db10/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2024-11-14 05:15:26,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:15:26,348 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:15:26,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-14 05:15:26,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [414] [2024-11-14 05:15:26,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [432] [2024-11-14 05:15:26,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [740] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [749] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [855] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [897] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1300] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1525] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2598] [2024-11-14 05:15:26,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2879] [2024-11-14 05:15:26,437 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_6c37d48a-6a18-42bc-8d74-569644b9db10/sv-benchmarks/c/product-lines/email_spec8_product14.cil.c[17564,17577] [2024-11-14 05:15:26,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:15:26,570 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:15:26,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26 WrapperNode [2024-11-14 05:15:26,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:15:26,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:15:26,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:15:26,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:15:26,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,670 INFO L138 Inliner]: procedures = 126, calls = 192, calls flagged for inlining = 51, calls inlined = 43, statements flattened = 906 [2024-11-14 05:15:26,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:15:26,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:15:26,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:15:26,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:15:26,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:15:26,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:15:26,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:15:26,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:15:26,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (1/1) ... [2024-11-14 05:15:26,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:15:26,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:15:26,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:15:26,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:15:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-14 05:15:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-14 05:15:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 05:15:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 05:15:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-14 05:15:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-14 05:15:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 05:15:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 05:15:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 05:15:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 05:15:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 05:15:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 05:15:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 05:15:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 05:15:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 05:15:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 05:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 05:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 05:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 05:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 05:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-14 05:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-14 05:15:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 05:15:26,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 05:15:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 05:15:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 05:15:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 05:15:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 05:15:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-14 05:15:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-14 05:15:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:15:26,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:15:27,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:15:27,144 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:15:28,431 INFO L? ?]: Removed 443 outVars from TransFormulas that were not future-live. [2024-11-14 05:15:28,431 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:15:29,152 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:15:29,153 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:15:29,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:15:29 BoogieIcfgContainer [2024-11-14 05:15:29,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:15:29,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:15:29,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:15:29,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:15:29,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:15:25" (1/3) ... [2024-11-14 05:15:29,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b1225a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:15:29, skipping insertion in model container [2024-11-14 05:15:29,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:15:26" (2/3) ... [2024-11-14 05:15:29,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b1225a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:15:29, skipping insertion in model container [2024-11-14 05:15:29,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:15:29" (3/3) ... [2024-11-14 05:15:29,163 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product14.cil.c [2024-11-14 05:15:29,181 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:15:29,183 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec8_product14.cil.c that has 22 procedures, 173 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:15:29,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:15:29,274 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;@64e9df74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:15:29,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:15:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 05:15:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 05:15:29,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:29,294 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] [2024-11-14 05:15:29,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:15:29,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash 310629608, now seen corresponding path program 1 times [2024-11-14 05:15:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:29,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288851700] [2024-11-14 05:15:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:15:29,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:29,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288851700] [2024-11-14 05:15:29,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288851700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:15:29,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:15:29,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:15:29,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108300460] [2024-11-14 05:15:29,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:15:29,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:15:29,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:15:29,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:15:29,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:15:29,821 INFO L87 Difference]: Start difference. First operand has 173 states, 98 states have (on average 1.346938775510204) internal successors, (132), 103 states have internal predecessors, (132), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) 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) [2024-11-14 05:15:30,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:15:30,045 INFO L93 Difference]: Finished difference Result 254 states and 343 transitions. [2024-11-14 05:15:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:15:30,048 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 [2024-11-14 05:15:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:15:30,062 INFO L225 Difference]: With dead ends: 254 [2024-11-14 05:15:30,062 INFO L226 Difference]: Without dead ends: 170 [2024-11-14 05:15:30,067 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 [2024-11-14 05:15:30,070 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:15:30,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:15:30,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-14 05:15:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-11-14 05:15:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 96 states have (on average 1.3125) internal successors, (126), 100 states have internal predecessors, (126), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:15:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2024-11-14 05:15:30,148 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 63 [2024-11-14 05:15:30,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:15:30,149 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2024-11-14 05:15:30,149 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) [2024-11-14 05:15:30,149 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2024-11-14 05:15:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 05:15:30,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:30,155 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] [2024-11-14 05:15:30,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:15:30,156 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:15:30,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash -467763426, now seen corresponding path program 1 times [2024-11-14 05:15:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495029854] [2024-11-14 05:15:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:15:30,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:30,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495029854] [2024-11-14 05:15:30,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495029854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:15:30,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:15:30,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:15:30,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123257910] [2024-11-14 05:15:30,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:15:30,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:15:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:15:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:15:30,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:15:30,568 INFO L87 Difference]: Start difference. First operand 170 states and 229 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) [2024-11-14 05:15:30,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:15:30,705 INFO L93 Difference]: Finished difference Result 250 states and 328 transitions. [2024-11-14 05:15:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:15:30,706 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 [2024-11-14 05:15:30,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:15:30,708 INFO L225 Difference]: With dead ends: 250 [2024-11-14 05:15:30,708 INFO L226 Difference]: Without dead ends: 172 [2024-11-14 05:15:30,709 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 [2024-11-14 05:15:30,710 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:15:30,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:15:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-14 05:15:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-14 05:15:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 21 states have call predecessors, (52), 21 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:15:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2024-11-14 05:15:30,729 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 64 [2024-11-14 05:15:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:15:30,729 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2024-11-14 05:15:30,729 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) [2024-11-14 05:15:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2024-11-14 05:15:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 05:15:30,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:30,732 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] [2024-11-14 05:15:30,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:15:30,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:15:30,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash -657465760, now seen corresponding path program 1 times [2024-11-14 05:15:30,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:30,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410540847] [2024-11-14 05:15:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:15:30,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:30,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410540847] [2024-11-14 05:15:30,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410540847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:15:30,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:15:30,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:15:30,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808712619] [2024-11-14 05:15:30,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:15:30,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:15:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:15:30,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:15:30,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:15:30,961 INFO L87 Difference]: Start difference. First operand 172 states and 231 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) [2024-11-14 05:15:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:15:31,093 INFO L93 Difference]: Finished difference Result 379 states and 529 transitions. [2024-11-14 05:15:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:15:31,094 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 [2024-11-14 05:15:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:15:31,096 INFO L225 Difference]: With dead ends: 379 [2024-11-14 05:15:31,096 INFO L226 Difference]: Without dead ends: 225 [2024-11-14 05:15:31,097 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 [2024-11-14 05:15:31,098 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 59 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:15:31,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 408 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:15:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-14 05:15:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2024-11-14 05:15:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 136 states have internal predecessors, (183), 66 states have call successors, (66), 21 states have call predecessors, (66), 21 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 05:15:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 314 transitions. [2024-11-14 05:15:31,122 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 314 transitions. Word has length 69 [2024-11-14 05:15:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:15:31,122 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 314 transitions. [2024-11-14 05:15:31,123 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) [2024-11-14 05:15:31,123 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 314 transitions. [2024-11-14 05:15:31,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 05:15:31,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:31,126 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] [2024-11-14 05:15:31,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:15:31,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:15:31,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:31,127 INFO L85 PathProgramCache]: Analyzing trace with hash 758760019, now seen corresponding path program 1 times [2024-11-14 05:15:31,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:31,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780302487] [2024-11-14 05:15:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:31,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:15:31,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:31,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780302487] [2024-11-14 05:15:31,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780302487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:15:31,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986716862] [2024-11-14 05:15:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:31,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:15:31,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:15:31,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:15:31,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:15:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:31,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:15:31,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:15:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:15:31,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:15:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:15:32,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986716862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:15:32,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1369525283] [2024-11-14 05:15:32,038 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-14 05:15:32,038 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:15:32,041 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:15:32,046 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:15:32,046 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:16:02,401 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:16:02,528 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:16:02,669 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:17:00,579 WARN L286 SmtUtils]: Spent 9.96s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:17:11,537 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 457 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:17:19,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1369525283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:17:19,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:17:19,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 05:17:19,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276814975] [2024-11-14 05:17:19,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:17:19,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:17:19,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:19,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:17:19,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:17:19,787 INFO L87 Difference]: Start difference. First operand 220 states and 314 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) [2024-11-14 05:17:32,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:32,395 INFO L93 Difference]: Finished difference Result 455 states and 666 transitions. [2024-11-14 05:17:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:17:32,397 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 [2024-11-14 05:17:32,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:32,400 INFO L225 Difference]: With dead ends: 455 [2024-11-14 05:17:32,400 INFO L226 Difference]: Without dead ends: 253 [2024-11-14 05:17:32,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 80.3s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:17:32,402 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 26 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:32,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2545 Invalid, 1921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-14 05:17:32,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-14 05:17:32,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2024-11-14 05:17:32,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 158 states have internal predecessors, (216), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 05:17:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 347 transitions. [2024-11-14 05:17:32,501 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 347 transitions. Word has length 70 [2024-11-14 05:17:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:32,501 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 347 transitions. [2024-11-14 05:17:32,502 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) [2024-11-14 05:17:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 347 transitions. [2024-11-14 05:17:32,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 05:17:32,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:32,508 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] [2024-11-14 05:17:32,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:17:32,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:32,709 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:17:32,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash -45642812, now seen corresponding path program 1 times [2024-11-14 05:17:32,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:32,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636471756] [2024-11-14 05:17:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:32,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:17:32,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:32,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636471756] [2024-11-14 05:17:32,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636471756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:17:32,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:17:32,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:17:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687751826] [2024-11-14 05:17:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:17:32,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:17:32,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:32,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:17:32,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:17:32,830 INFO L87 Difference]: Start difference. First operand 243 states and 347 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) [2024-11-14 05:17:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:33,036 INFO L93 Difference]: Finished difference Result 589 states and 874 transitions. [2024-11-14 05:17:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:17:33,037 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 [2024-11-14 05:17:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:33,040 INFO L225 Difference]: With dead ends: 589 [2024-11-14 05:17:33,040 INFO L226 Difference]: Without dead ends: 370 [2024-11-14 05:17:33,044 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 [2024-11-14 05:17:33,045 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 57 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:33,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 413 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:17:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-14 05:17:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 365. [2024-11-14 05:17:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 245 states have (on average 1.453061224489796) internal successors, (356), 249 states have internal predecessors, (356), 97 states have call successors, (97), 22 states have call predecessors, (97), 22 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-14 05:17:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 549 transitions. [2024-11-14 05:17:33,170 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 549 transitions. Word has length 75 [2024-11-14 05:17:33,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:33,170 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 549 transitions. [2024-11-14 05:17:33,171 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) [2024-11-14 05:17:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 549 transitions. [2024-11-14 05:17:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:17:33,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:33,175 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] [2024-11-14 05:17:33,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:17:33,176 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:17:33,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:33,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1131040506, now seen corresponding path program 1 times [2024-11-14 05:17:33,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:33,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941704264] [2024-11-14 05:17:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:33,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:17:33,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941704264] [2024-11-14 05:17:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941704264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102820650] [2024-11-14 05:17:33,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:33,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:33,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:33,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:33,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:17:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:33,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:17:33,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:17:33,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:17:33,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102820650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:17:33,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [751594774] [2024-11-14 05:17:33,804 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 05:17:33,804 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:33,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:33,805 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:33,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:18:09,390 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:18:09,502 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-14 05:18:10,649 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:18:33,392 WARN L286 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 437 DAG size of output: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:18:44,243 WARN L286 SmtUtils]: Spent 10.45s 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) [2024-11-14 05:19:27,027 WARN L286 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 458 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:19:40,808 WARN L286 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 459 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:20:06,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [751594774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:06,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:06,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 05:20:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787672262] [2024-11-14 05:20:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:06,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 05:20:06,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 05:20:06,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:20:06,561 INFO L87 Difference]: Start difference. First operand 365 states and 549 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) [2024-11-14 05:20:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:20,773 INFO L93 Difference]: Finished difference Result 740 states and 1141 transitions. [2024-11-14 05:20:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 05:20:20,774 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 [2024-11-14 05:20:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:20,778 INFO L225 Difference]: With dead ends: 740 [2024-11-14 05:20:20,778 INFO L226 Difference]: Without dead ends: 438 [2024-11-14 05:20:20,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 115.9s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:20:20,784 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 43 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 2449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:20,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2983 Invalid, 2449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-14 05:20:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-14 05:20:20,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 379. [2024-11-14 05:20:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 257 states have (on average 1.45136186770428) internal successors, (373), 261 states have internal predecessors, (373), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (97), 96 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-14 05:20:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 568 transitions. [2024-11-14 05:20:20,928 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 568 transitions. Word has length 76 [2024-11-14 05:20:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:20,929 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 568 transitions. [2024-11-14 05:20:20,929 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) [2024-11-14 05:20:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 568 transitions. [2024-11-14 05:20:20,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 05:20:20,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:20,934 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] [2024-11-14 05:20:20,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:20:21,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:21,141 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:20:21,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2068050200, now seen corresponding path program 1 times [2024-11-14 05:20:21,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:21,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577758047] [2024-11-14 05:20:21,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:21,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:21,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:20:21,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:21,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577758047] [2024-11-14 05:20:21,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577758047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:21,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145766719] [2024-11-14 05:20:21,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:21,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:21,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:21,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:21,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:20:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:21,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:20:21,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:20:21,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:20:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:20:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145766719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:20:21,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [349248554] [2024-11-14 05:20:21,936 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 05:20:21,936 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:20:21,936 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:20:21,937 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:20:21,937 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:23,997 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:21:24,119 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-14 05:21:25,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 492 for LOIs [2024-11-14 05:21:26,169 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 428 for LOIs [2024-11-14 05:21:26,538 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:21:26,756 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:38,087 WARN L286 SmtUtils]: Spent 14.61s on a formula simplification. DAG size of input: 516 DAG size of output: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:22:53,524 WARN L286 SmtUtils]: Spent 14.54s on a formula simplification. DAG size of input: 517 DAG size of output: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:23:16,961 WARN L286 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 497 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:23:23,167 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 502 DAG size of output: 498 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:23:28,898 WARN L286 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:23:34,701 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:23:56,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [349248554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:56,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:56,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 05:23:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589632130] [2024-11-14 05:23:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:56,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 05:23:56,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:56,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 05:23:56,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:23:56,217 INFO L87 Difference]: Start difference. First operand 379 states and 568 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) [2024-11-14 05:24:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:19,010 INFO L93 Difference]: Finished difference Result 765 states and 1176 transitions. [2024-11-14 05:24:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 05:24:19,011 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 [2024-11-14 05:24:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:19,014 INFO L225 Difference]: With dead ends: 765 [2024-11-14 05:24:19,014 INFO L226 Difference]: Without dead ends: 463 [2024-11-14 05:24:19,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 152.8s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 05:24:19,017 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 104 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 3228 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 3238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:19,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 3071 Invalid, 3238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3228 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2024-11-14 05:24:19,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-14 05:24:19,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 415. [2024-11-14 05:24:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 287 states have (on average 1.4459930313588851) internal successors, (415), 291 states have internal predecessors, (415), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-14 05:24:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 616 transitions. [2024-11-14 05:24:19,172 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 616 transitions. Word has length 79 [2024-11-14 05:24:19,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:19,172 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 616 transitions. [2024-11-14 05:24:19,172 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) [2024-11-14 05:24:19,172 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 616 transitions. [2024-11-14 05:24:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:24:19,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:19,175 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] [2024-11-14 05:24:19,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:24:19,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:19,375 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:19,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1825880362, now seen corresponding path program 1 times [2024-11-14 05:24:19,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:19,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718875748] [2024-11-14 05:24:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:19,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:24:19,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:19,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718875748] [2024-11-14 05:24:19,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718875748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:19,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939943365] [2024-11-14 05:24:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:19,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:19,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:19,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:19,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:24:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:19,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:24:19,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:24:19,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:24:20,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939943365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:20,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1769300354] [2024-11-14 05:24:20,048 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 05:24:20,048 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:20,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:20,049 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:20,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:55,775 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:24:55,903 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:24:56,074 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:06,136 WARN L286 SmtUtils]: Spent 12.48s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:26:19,732 WARN L286 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 457 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:26:53,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1769300354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:53,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:26:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 05:26:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973188417] [2024-11-14 05:26:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:53,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 05:26:53,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 05:26:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 05:26:53,192 INFO L87 Difference]: Start difference. First operand 415 states and 616 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) [2024-11-14 05:27:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:08,698 INFO L93 Difference]: Finished difference Result 766 states and 1165 transitions. [2024-11-14 05:27:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:27:08,699 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 [2024-11-14 05:27:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:08,704 INFO L225 Difference]: With dead ends: 766 [2024-11-14 05:27:08,704 INFO L226 Difference]: Without dead ends: 464 [2024-11-14 05:27:08,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 201 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 121.0s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:27:08,707 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 18 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:08,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2426 Invalid, 2151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-11-14 05:27:08,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-14 05:27:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 435. [2024-11-14 05:27:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 307 states have (on average 1.4495114006514658) internal successors, (445), 311 states have internal predecessors, (445), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-14 05:27:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 646 transitions. [2024-11-14 05:27:08,886 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 646 transitions. Word has length 78 [2024-11-14 05:27:08,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:08,886 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 646 transitions. [2024-11-14 05:27:08,887 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) [2024-11-14 05:27:08,887 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 646 transitions. [2024-11-14 05:27:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 05:27:08,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:08,890 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] [2024-11-14 05:27:08,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:27:09,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 05:27:09,091 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:09,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:09,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1688492689, now seen corresponding path program 1 times [2024-11-14 05:27:09,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:09,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892897591] [2024-11-14 05:27:09,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:09,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 05:27:09,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:09,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892897591] [2024-11-14 05:27:09,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892897591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:09,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:09,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:27:09,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120736067] [2024-11-14 05:27:09,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:09,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:27:09,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:09,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:27:09,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:27:09,372 INFO L87 Difference]: Start difference. First operand 435 states and 646 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) [2024-11-14 05:27:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:09,743 INFO L93 Difference]: Finished difference Result 548 states and 784 transitions. [2024-11-14 05:27:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:27:09,744 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 [2024-11-14 05:27:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:09,749 INFO L225 Difference]: With dead ends: 548 [2024-11-14 05:27:09,749 INFO L226 Difference]: Without dead ends: 477 [2024-11-14 05:27:09,750 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 [2024-11-14 05:27:09,754 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 142 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:09,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 268 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:27:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-14 05:27:09,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2024-11-14 05:27:09,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 328 states have (on average 1.4268292682926829) internal successors, (468), 334 states have internal predecessors, (468), 113 states have call successors, (113), 36 states have call predecessors, (113), 34 states have return successors, (111), 108 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-14 05:27:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 692 transitions. [2024-11-14 05:27:10,000 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 692 transitions. Word has length 81 [2024-11-14 05:27:10,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:10,000 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 692 transitions. [2024-11-14 05:27:10,001 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) [2024-11-14 05:27:10,001 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 692 transitions. [2024-11-14 05:27:10,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 05:27:10,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:10,005 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] [2024-11-14 05:27:10,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:27:10,005 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:10,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:10,006 INFO L85 PathProgramCache]: Analyzing trace with hash 805452602, now seen corresponding path program 1 times [2024-11-14 05:27:10,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:10,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310804623] [2024-11-14 05:27:10,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:10,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-14 05:27:10,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310804623] [2024-11-14 05:27:10,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310804623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:10,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:10,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 05:27:10,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803871212] [2024-11-14 05:27:10,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:10,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:27:10,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:10,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:27:10,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:27:10,678 INFO L87 Difference]: Start difference. First operand 476 states and 692 transitions. Second operand has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 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) [2024-11-14 05:27:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:12,071 INFO L93 Difference]: Finished difference Result 899 states and 1289 transitions. [2024-11-14 05:27:12,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:27:12,072 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 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 124 [2024-11-14 05:27:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:12,078 INFO L225 Difference]: With dead ends: 899 [2024-11-14 05:27:12,078 INFO L226 Difference]: Without dead ends: 792 [2024-11-14 05:27:12,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:27:12,081 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 304 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:12,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1241 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:27:12,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-11-14 05:27:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 785. [2024-11-14 05:27:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 525 states have (on average 1.4419047619047618) internal successors, (757), 536 states have internal predecessors, (757), 200 states have call successors, (200), 63 states have call predecessors, (200), 59 states have return successors, (195), 191 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-14 05:27:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1152 transitions. [2024-11-14 05:27:12,526 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1152 transitions. Word has length 124 [2024-11-14 05:27:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:12,527 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 1152 transitions. [2024-11-14 05:27:12,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 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) [2024-11-14 05:27:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1152 transitions. [2024-11-14 05:27:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-14 05:27:12,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:12,533 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] [2024-11-14 05:27:12,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:27:12,534 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:12,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1450573524, now seen corresponding path program 1 times [2024-11-14 05:27:12,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:12,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234760331] [2024-11-14 05:27:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:12,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-14 05:27:12,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:12,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234760331] [2024-11-14 05:27:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234760331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:27:12,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863297981] [2024-11-14 05:27:12,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:12,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:27:12,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:12,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:27:12,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:27:12,783 INFO L87 Difference]: Start difference. First operand 785 states and 1152 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 05:27:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:13,268 INFO L93 Difference]: Finished difference Result 874 states and 1252 transitions. [2024-11-14 05:27:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:27:13,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 119 [2024-11-14 05:27:13,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:13,276 INFO L225 Difference]: With dead ends: 874 [2024-11-14 05:27:13,276 INFO L226 Difference]: Without dead ends: 651 [2024-11-14 05:27:13,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:27:13,279 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 199 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:13,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 395 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:27:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-14 05:27:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 645. [2024-11-14 05:27:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 450 states have (on average 1.4577777777777778) internal successors, (656), 453 states have internal predecessors, (656), 157 states have call successors, (157), 40 states have call predecessors, (157), 37 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-14 05:27:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 967 transitions. [2024-11-14 05:27:13,674 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 967 transitions. Word has length 119 [2024-11-14 05:27:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:13,674 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 967 transitions. [2024-11-14 05:27:13,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 05:27:13,675 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 967 transitions. [2024-11-14 05:27:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 05:27:13,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:13,679 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] [2024-11-14 05:27:13,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:27:13,680 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:13,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:13,680 INFO L85 PathProgramCache]: Analyzing trace with hash 786073009, now seen corresponding path program 1 times [2024-11-14 05:27:13,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:13,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45360012] [2024-11-14 05:27:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:13,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 05:27:13,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:13,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45360012] [2024-11-14 05:27:13,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45360012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:13,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343824669] [2024-11-14 05:27:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:13,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:13,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:13,929 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:13,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c37d48a-6a18-42bc-8d74-569644b9db10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:27:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:14,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:27:14,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-14 05:27:14,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 05:27:14,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343824669] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:14,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [446471266] [2024-11-14 05:27:14,740 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2024-11-14 05:27:14,740 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:14,740 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:14,741 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:14,741 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:28:27,343 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:28:27,469 INFO L197 IcfgInterpreter]: Interpreting procedure setClientAddressBookAddress with input of size 458 for LOIs [2024-11-14 05:28:29,340 INFO L197 IcfgInterpreter]: Interpreting procedure setClientAddressBookSize with input of size 430 for LOIs [2024-11-14 05:28:29,601 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:28:29,793 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:29:41,287 WARN L286 SmtUtils]: Spent 12.09s on a formula simplification. DAG size of input: 459 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)