./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product33.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_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/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_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/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_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/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 4e977513fd5d8adeea8c73d7c4eeb6cb821e6c768a15a7e6394764a4355fc74d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:43:52,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:43:52,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:43:52,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:43:52,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:43:52,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:43:52,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:43:52,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:43:52,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:43:52,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:43:52,799 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:43:52,800 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:43:52,800 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:43:52,800 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:43:52,801 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:43:52,801 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:43:52,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:43:52,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:43:52,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:43:52,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:43:52,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:43:52,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:43:52,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:43:52,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:43:52,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:52,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:43:52,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:43:52,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:43:52,805 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:43:52,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:43:52,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:43:52,806 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:43:52,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:43:52,806 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_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/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 -> 4e977513fd5d8adeea8c73d7c4eeb6cb821e6c768a15a7e6394764a4355fc74d [2024-11-14 02:43:53,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:43:53,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:43:53,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:43:53,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:43:53,186 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:43:53,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec11_product33.cil.c Unable to find full path for "g++" [2024-11-14 02:43:55,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:43:55,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:43:55,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/sv-benchmarks/c/product-lines/email_spec11_product33.cil.c [2024-11-14 02:43:55,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/data/3e0b8fe3d/146dccdc703e4bb8aead3f21c1809a91/FLAG858539f22 [2024-11-14 02:43:55,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/data/3e0b8fe3d/146dccdc703e4bb8aead3f21c1809a91 [2024-11-14 02:43:55,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:43:55,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:43:55,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:43:55,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:43:55,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:43:55,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44dbdbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:55, skipping insertion in model container [2024-11-14 02:43:55,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:43:55" (1/1) ... [2024-11-14 02:43:55,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:43:56,444 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_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/sv-benchmarks/c/product-lines/email_spec11_product33.cil.c[64763,64776] [2024-11-14 02:43:56,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:43:56,473 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:43:56,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-14 02:43:56,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1128] [2024-11-14 02:43:56,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1288] [2024-11-14 02:43:56,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1305] [2024-11-14 02:43:56,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1671] [2024-11-14 02:43:56,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2072] [2024-11-14 02:43:56,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2469] [2024-11-14 02:43:56,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2489] [2024-11-14 02:43:56,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2788] [2024-11-14 02:43:56,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3007] [2024-11-14 02:43:56,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3042] [2024-11-14 02:43:56,690 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_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/sv-benchmarks/c/product-lines/email_spec11_product33.cil.c[64763,64776] [2024-11-14 02:43:56,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:43:56,731 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:43:56,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56 WrapperNode [2024-11-14 02:43:56,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:43:56,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:56,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:43:56,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:43:56,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,872 INFO L138 Inliner]: procedures = 134, calls = 211, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1072 [2024-11-14 02:43:56,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:56,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:43:56,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:43:56,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:43:56,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:43:56,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:43:56,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:43:56,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:43:56,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (1/1) ... [2024-11-14 02:43:56,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:56,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:56,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:43:56,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:43:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-14 02:43:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-14 02:43:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 02:43:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 02:43:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 02:43:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 02:43:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 02:43:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 02:43:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 02:43:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 02:43:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 02:43:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 02:43:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 02:43:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 02:43:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 02:43:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 02:43:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 02:43:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 02:43:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 02:43:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 02:43:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 02:43:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 02:43:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-14 02:43:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-14 02:43:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 02:43:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 02:43:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:43:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 02:43:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 02:43:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-14 02:43:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-14 02:43:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 02:43:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 02:43:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:43:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 02:43:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 02:43:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:43:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:43:57,316 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:43:57,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:43:58,711 INFO L? ?]: Removed 500 outVars from TransFormulas that were not future-live. [2024-11-14 02:43:58,711 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:43:59,555 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:43:59,556 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:43:59,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:59 BoogieIcfgContainer [2024-11-14 02:43:59,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:43:59,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:43:59,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:43:59,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:43:59,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:43:55" (1/3) ... [2024-11-14 02:43:59,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7889b5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:43:59, skipping insertion in model container [2024-11-14 02:43:59,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:43:56" (2/3) ... [2024-11-14 02:43:59,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7889b5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:43:59, skipping insertion in model container [2024-11-14 02:43:59,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:43:59" (3/3) ... [2024-11-14 02:43:59,566 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product33.cil.c [2024-11-14 02:43:59,586 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:43:59,591 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec11_product33.cil.c that has 25 procedures, 209 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:43:59,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:43:59,687 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;@317f4a5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:43:59,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:43:59,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 125 states have internal predecessors, (158), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 02:43:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 02:43:59,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:59,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 02:43:59,709 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:43:59,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:59,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1783151815, now seen corresponding path program 1 times [2024-11-14 02:43:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:59,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729846550] [2024-11-14 02:43:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:59,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:44:00,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:00,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729846550] [2024-11-14 02:44:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729846550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:00,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111294993] [2024-11-14 02:44:00,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:00,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:44:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:00,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:44:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:44:00,281 INFO L87 Difference]: Start difference. First operand has 209 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 125 states have internal predecessors, (158), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 02:44:00,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:00,472 INFO L93 Difference]: Finished difference Result 335 states and 442 transitions. [2024-11-14 02:44:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:44:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2024-11-14 02:44:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:00,491 INFO L225 Difference]: With dead ends: 335 [2024-11-14 02:44:00,491 INFO L226 Difference]: Without dead ends: 206 [2024-11-14 02:44:00,496 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 02:44:00,502 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:00,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-14 02:44:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-14 02:44:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 122 states have internal predecessors, (152), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-14 02:44:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 275 transitions. [2024-11-14 02:44:00,582 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 275 transitions. Word has length 88 [2024-11-14 02:44:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:00,584 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 275 transitions. [2024-11-14 02:44:00,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 02:44:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 275 transitions. [2024-11-14 02:44:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 02:44:00,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:00,590 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 02:44:00,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:44:00,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:00,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:00,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1791463484, now seen corresponding path program 1 times [2024-11-14 02:44:00,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:00,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772162237] [2024-11-14 02:44:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:00,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:44:01,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:01,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772162237] [2024-11-14 02:44:01,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772162237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:01,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:01,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:44:01,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185942839] [2024-11-14 02:44:01,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:01,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:01,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:01,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:01,064 INFO L87 Difference]: Start difference. First operand 206 states and 275 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 02:44:01,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:01,252 INFO L93 Difference]: Finished difference Result 331 states and 430 transitions. [2024-11-14 02:44:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:01,254 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2024-11-14 02:44:01,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:01,257 INFO L225 Difference]: With dead ends: 331 [2024-11-14 02:44:01,257 INFO L226 Difference]: Without dead ends: 208 [2024-11-14 02:44:01,258 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 02:44:01,259 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:01,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 471 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:01,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-14 02:44:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-14 02:44:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 124 states have internal predecessors, (154), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-14 02:44:01,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 277 transitions. [2024-11-14 02:44:01,295 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 277 transitions. Word has length 89 [2024-11-14 02:44:01,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:01,295 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 277 transitions. [2024-11-14 02:44:01,295 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 02:44:01,295 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 277 transitions. [2024-11-14 02:44:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-14 02:44:01,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:01,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 02:44:01,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:44:01,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:01,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1886172412, now seen corresponding path program 1 times [2024-11-14 02:44:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452043274] [2024-11-14 02:44:01,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:44:01,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:01,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452043274] [2024-11-14 02:44:01,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452043274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:01,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:01,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:44:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761509769] [2024-11-14 02:44:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:01,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:01,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:01,556 INFO L87 Difference]: Start difference. First operand 208 states and 277 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 02:44:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:01,757 INFO L93 Difference]: Finished difference Result 446 states and 613 transitions. [2024-11-14 02:44:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:01,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 94 [2024-11-14 02:44:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:01,761 INFO L225 Difference]: With dead ends: 446 [2024-11-14 02:44:01,764 INFO L226 Difference]: Without dead ends: 256 [2024-11-14 02:44:01,766 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 02:44:01,767 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 57 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:01,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 481 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:44:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-14 02:44:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 251. [2024-11-14 02:44:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 153 states have (on average 1.3529411764705883) internal successors, (207), 156 states have internal predecessors, (207), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-14 02:44:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 352 transitions. [2024-11-14 02:44:01,808 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 352 transitions. Word has length 94 [2024-11-14 02:44:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:01,809 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 352 transitions. [2024-11-14 02:44:01,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 02:44:01,809 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 352 transitions. [2024-11-14 02:44:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 02:44:01,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:01,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 02:44:01,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:44:01,815 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:01,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2088151568, now seen corresponding path program 1 times [2024-11-14 02:44:01,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:01,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680155562] [2024-11-14 02:44:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:01,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:44:02,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:02,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680155562] [2024-11-14 02:44:02,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680155562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:02,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105879571] [2024-11-14 02:44:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:02,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:02,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:02,165 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:02,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:44:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:02,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:44:02,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:44:02,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:44:02,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105879571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:44:02,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [826469138] [2024-11-14 02:44:03,012 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2024-11-14 02:44:03,012 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:44:03,017 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:44:03,022 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:44:03,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:44:31,117 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-14 02:44:31,299 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 02:44:31,517 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:45:37,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [826469138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:37,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:45:37,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 02:45:38,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180060295] [2024-11-14 02:45:38,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:38,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 02:45:38,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 02:45:38,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-14 02:45:38,003 INFO L87 Difference]: Start difference. First operand 251 states and 352 transitions. Second operand has 23 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-14 02:45:51,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:51,405 INFO L93 Difference]: Finished difference Result 516 states and 740 transitions. [2024-11-14 02:45:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 02:45:51,406 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 95 [2024-11-14 02:45:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:51,409 INFO L225 Difference]: With dead ends: 516 [2024-11-14 02:45:51,409 INFO L226 Difference]: Without dead ends: 283 [2024-11-14 02:45:51,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 69.9s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 02:45:51,412 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 25 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:51,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3217 Invalid, 2064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-14 02:45:51,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-14 02:45:51,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 274. [2024-11-14 02:45:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 178 states have internal predecessors, (240), 73 states have call successors, (73), 25 states have call predecessors, (73), 25 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-14 02:45:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 385 transitions. [2024-11-14 02:45:51,510 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 385 transitions. Word has length 95 [2024-11-14 02:45:51,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:51,512 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 385 transitions. [2024-11-14 02:45:51,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-14 02:45:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 385 transitions. [2024-11-14 02:45:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 02:45:51,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:51,519 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 02:45:51,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:45:51,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:51,726 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:51,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:51,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1242868131, now seen corresponding path program 1 times [2024-11-14 02:45:51,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:51,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389368696] [2024-11-14 02:45:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:51,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:51,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:51,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389368696] [2024-11-14 02:45:51,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389368696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:51,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:51,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:45:51,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383220880] [2024-11-14 02:45:51,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:51,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:45:51,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:51,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:45:51,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:45:51,915 INFO L87 Difference]: Start difference. First operand 274 states and 385 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 02:45:52,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:52,170 INFO L93 Difference]: Finished difference Result 641 states and 934 transitions. [2024-11-14 02:45:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:45:52,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 100 [2024-11-14 02:45:52,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:52,175 INFO L225 Difference]: With dead ends: 641 [2024-11-14 02:45:52,175 INFO L226 Difference]: Without dead ends: 391 [2024-11-14 02:45:52,178 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 02:45:52,179 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 55 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:52,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 488 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:45:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-14 02:45:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 386. [2024-11-14 02:45:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 262 states have (on average 1.4351145038167938) internal successors, (376), 265 states have internal predecessors, (376), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-14 02:45:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 571 transitions. [2024-11-14 02:45:52,296 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 571 transitions. Word has length 100 [2024-11-14 02:45:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:52,297 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 571 transitions. [2024-11-14 02:45:52,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 02:45:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 571 transitions. [2024-11-14 02:45:52,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 02:45:52,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:52,300 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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 02:45:52,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:45:52,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:45:52,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1507866670, now seen corresponding path program 1 times [2024-11-14 02:45:52,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:52,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100046882] [2024-11-14 02:45:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:52,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:52,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:52,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100046882] [2024-11-14 02:45:52,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100046882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:45:52,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738366786] [2024-11-14 02:45:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:52,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:52,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:52,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:45:52,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:45:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:52,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:45:52,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:53,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:45:53,149 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:53,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738366786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:45:53,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2136862109] [2024-11-14 02:45:53,155 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2024-11-14 02:45:53,155 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:45:53,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:45:53,156 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:45:53,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:46:25,907 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-14 02:46:26,071 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 440 for LOIs [2024-11-14 02:46:27,186 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:46:51,272 WARN L286 SmtUtils]: Spent 7.38s on a formula simplification. DAG size of input: 440 DAG size of output: 441 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:47:02,925 WARN L286 SmtUtils]: Spent 11.26s on a formula simplification. DAG size of input: 464 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:48:05,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2136862109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:48:05,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:48:05,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 02:48:05,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329200038] [2024-11-14 02:48:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:48:05,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 02:48:05,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:48:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 02:48:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-14 02:48:05,040 INFO L87 Difference]: Start difference. First operand 386 states and 571 transitions. Second operand has 26 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-14 02:48:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:48:20,892 INFO L93 Difference]: Finished difference Result 780 states and 1181 transitions. [2024-11-14 02:48:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 02:48:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 101 [2024-11-14 02:48:20,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:48:20,897 INFO L225 Difference]: With dead ends: 780 [2024-11-14 02:48:20,897 INFO L226 Difference]: Without dead ends: 457 [2024-11-14 02:48:20,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 101.2s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 02:48:20,899 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 61 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:48:20,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2983 Invalid, 2447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-11-14 02:48:20,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-14 02:48:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 400. [2024-11-14 02:48:21,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 274 states have (on average 1.4343065693430657) internal successors, (393), 277 states have internal predecessors, (393), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-14 02:48:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 590 transitions. [2024-11-14 02:48:21,017 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 590 transitions. Word has length 101 [2024-11-14 02:48:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:48:21,017 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 590 transitions. [2024-11-14 02:48:21,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-14 02:48:21,018 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 590 transitions. [2024-11-14 02:48:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-14 02:48:21,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:48:21,021 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 02:48:21,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 02:48:21,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:48:21,221 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:48:21,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:48:21,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2041399009, now seen corresponding path program 1 times [2024-11-14 02:48:21,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:48:21,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520626308] [2024-11-14 02:48:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:48:21,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:48:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:48:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:48:21,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:48:21,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520626308] [2024-11-14 02:48:21,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520626308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:48:21,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108206492] [2024-11-14 02:48:21,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:48:21,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:48:21,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:48:21,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:48:21,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:48:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:48:21,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:48:21,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:48:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:48:21,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:48:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:48:22,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108206492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:48:22,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1173510656] [2024-11-14 02:48:22,035 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-14 02:48:22,035 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:48:22,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:48:22,035 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:48:22,035 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:49:43,076 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-14 02:49:43,219 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 486 for LOIs [2024-11-14 02:49:44,238 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 495 for LOIs [2024-11-14 02:49:45,122 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 431 for LOIs [2024-11-14 02:49:45,486 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 02:49:45,589 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:50:46,797 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 517 DAG size of output: 508 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:51:13,512 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 501 DAG size of output: 497 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:51:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1173510656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:51:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 02:51:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021920995] [2024-11-14 02:51:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:45,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 02:51:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 02:51:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 02:51:45,731 INFO L87 Difference]: Start difference. First operand 400 states and 590 transitions. Second operand has 33 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 18 states have internal predecessors, (49), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-14 02:52:13,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:52:13,119 INFO L93 Difference]: Finished difference Result 805 states and 1216 transitions. [2024-11-14 02:52:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 02:52:13,120 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 18 states have internal predecessors, (49), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 104 [2024-11-14 02:52:13,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:52:13,125 INFO L225 Difference]: With dead ends: 805 [2024-11-14 02:52:13,125 INFO L226 Difference]: Without dead ends: 482 [2024-11-14 02:52:13,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 124.2s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 02:52:13,128 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 100 mSDsluCounter, 3663 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3878 SdHoareTripleChecker+Invalid, 3722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:52:13,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3878 Invalid, 3722 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3712 Invalid, 0 Unknown, 0 Unchecked, 22.9s Time] [2024-11-14 02:52:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-14 02:52:13,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 436. [2024-11-14 02:52:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 304 states have (on average 1.430921052631579) internal successors, (435), 307 states have internal predecessors, (435), 102 states have call successors, (102), 29 states have call predecessors, (102), 29 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-14 02:52:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 638 transitions. [2024-11-14 02:52:13,280 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 638 transitions. Word has length 104 [2024-11-14 02:52:13,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:52:13,281 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 638 transitions. [2024-11-14 02:52:13,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 18 states have internal predecessors, (49), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-14 02:52:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 638 transitions. [2024-11-14 02:52:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-14 02:52:13,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:52:13,285 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 02:52:13,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 02:52:13,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:52:13,490 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:52:13,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:52:13,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1823273226, now seen corresponding path program 1 times [2024-11-14 02:52:13,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:52:13,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850909385] [2024-11-14 02:52:13,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:13,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:52:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:52:13,698 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:52:13,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:52:13,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850909385] [2024-11-14 02:52:13,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850909385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:52:13,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687874874] [2024-11-14 02:52:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:13,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:52:13,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:52:13,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:52:13,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:52:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:52:14,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:52:14,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:52:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:52:14,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:52:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 02:52:14,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687874874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:52:14,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [782377259] [2024-11-14 02:52:14,429 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2024-11-14 02:52:14,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:52:14,431 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:52:14,432 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:52:14,432 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:53:04,527 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-14 02:53:04,704 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 02:53:04,819 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:54:12,455 WARN L286 SmtUtils]: Spent 11.72s 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 02:54:25,281 WARN L286 SmtUtils]: Spent 11.49s 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 02:54:37,796 WARN L286 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:54:51,218 WARN L286 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:04,292 WARN L286 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:17,947 WARN L286 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:29,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [782377259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:55:29,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:55:29,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-14 02:55:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261145264] [2024-11-14 02:55:29,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:55:29,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 02:55:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:55:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 02:55:29,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 02:55:29,296 INFO L87 Difference]: Start difference. First operand 436 states and 638 transitions. Second operand has 28 states, 20 states have (on average 2.7) internal successors, (54), 19 states have internal predecessors, (54), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-14 02:55:50,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:55:50,331 INFO L93 Difference]: Finished difference Result 807 states and 1207 transitions. [2024-11-14 02:55:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 02:55:50,332 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 2.7) internal successors, (54), 19 states have internal predecessors, (54), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 103 [2024-11-14 02:55:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:55:50,336 INFO L225 Difference]: With dead ends: 807 [2024-11-14 02:55:50,336 INFO L226 Difference]: Without dead ends: 484 [2024-11-14 02:55:50,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 276 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 152.8s TimeCoverageRelationStatistics Valid=122, Invalid=1068, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 02:55:50,338 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 19 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:55:50,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3308 Invalid, 2414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-14 02:55:50,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-14 02:55:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 456. [2024-11-14 02:55:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 324 states have (on average 1.4351851851851851) internal successors, (465), 327 states have internal predecessors, (465), 102 states have call successors, (102), 29 states have call predecessors, (102), 29 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-14 02:55:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 668 transitions. [2024-11-14 02:55:50,546 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 668 transitions. Word has length 103 [2024-11-14 02:55:50,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:55:50,548 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 668 transitions. [2024-11-14 02:55:50,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 2.7) internal successors, (54), 19 states have internal predecessors, (54), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-14 02:55:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 668 transitions. [2024-11-14 02:55:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-14 02:55:50,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:55:50,551 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:55:50,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 02:55:50,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 02:55:50,755 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:55:50,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:55:50,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1565057871, now seen corresponding path program 1 times [2024-11-14 02:55:50,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:55:50,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138660015] [2024-11-14 02:55:50,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:55:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:55:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:55:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-14 02:55:51,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:55:51,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138660015] [2024-11-14 02:55:51,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138660015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:55:51,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131839093] [2024-11-14 02:55:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:55:51,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:55:51,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:55:51,823 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:55:51,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bca04e-eec2-4beb-ad8b-cfe0f96b71ea/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 02:55:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:55:52,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:55:52,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:55:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:55:52,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:55:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:55:52,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131839093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:55:52,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1456890494] [2024-11-14 02:55:52,519 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2024-11-14 02:55:52,519 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:55:52,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:55:52,520 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:55:52,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:56:21,950 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-14 02:56:22,125 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 02:56:22,254 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 256 for LOIs [2024-11-14 02:56:25,237 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 224 for LOIs [2024-11-14 02:56:25,342 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 254 for LOIs [2024-11-14 02:56:40,783 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 231 for LOIs [2024-11-14 02:56:41,562 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 231 for LOIs [2024-11-14 02:56:41,649 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 258 for LOIs [2024-11-14 02:56:42,412 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 236 for LOIs [2024-11-14 02:56:42,521 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 227 for LOIs [2024-11-14 02:56:42,619 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 228 for LOIs [2024-11-14 02:56:42,708 INFO L180 IcfgInterpreter]: Interpretation finished