./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product34.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_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/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_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/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_776cb304-8c1b-48a0-9238-0704a14a7495/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 76fb98768a82c6e881c4461160153969b956a6a73a8217d33a39b93921ba72b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:07:49,346 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:07:49,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:07:49,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:07:49,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:07:49,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:07:49,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:07:49,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:07:49,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:07:49,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:07:49,512 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:07:49,512 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:07:49,512 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:07:49,513 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:07:49,513 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:07:49,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:07:49,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:07:49,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:07:49,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:07:49,517 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:07:49,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:07:49,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:07:49,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:07:49,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:07:49,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:07:49,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:07:49,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:07:49,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:07:49,519 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_776cb304-8c1b-48a0-9238-0704a14a7495/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 -> 76fb98768a82c6e881c4461160153969b956a6a73a8217d33a39b93921ba72b5 [2024-11-14 03:07:49,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:07:49,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:07:49,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:07:49,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:07:49,880 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:07:49,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec1_product34.cil.c Unable to find full path for "g++" [2024-11-14 03:07:52,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:07:52,643 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:07:52,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c [2024-11-14 03:07:52,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/data/f16fbb083/9f31fb0485f74d1799f74e9d1ff4c579/FLAG5f577305c [2024-11-14 03:07:52,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/data/f16fbb083/9f31fb0485f74d1799f74e9d1ff4c579 [2024-11-14 03:07:52,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:07:52,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:07:52,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:07:52,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:07:52,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:07:52,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:07:52" (1/1) ... [2024-11-14 03:07:52,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21905d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:52, skipping insertion in model container [2024-11-14 03:07:52,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:07:52" (1/1) ... [2024-11-14 03:07:52,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:07:53,067 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_776cb304-8c1b-48a0-9238-0704a14a7495/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c[2480,2493] [2024-11-14 03:07:53,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:07:53,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:07:53,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [48] [2024-11-14 03:07:53,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [90] [2024-11-14 03:07:53,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [99] [2024-11-14 03:07:53,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [117] [2024-11-14 03:07:53,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [483] [2024-11-14 03:07:53,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1563] [2024-11-14 03:07:53,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1601] [2024-11-14 03:07:53,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2021] [2024-11-14 03:07:53,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2250] [2024-11-14 03:07:53,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2387] [2024-11-14 03:07:53,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2784] [2024-11-14 03:07:53,688 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_776cb304-8c1b-48a0-9238-0704a14a7495/sv-benchmarks/c/product-lines/email_spec1_product34.cil.c[2480,2493] [2024-11-14 03:07:53,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:07:53,908 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:07:53,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53 WrapperNode [2024-11-14 03:07:53,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:07:53,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:07:53,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:07:53,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:07:53,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:53,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,007 INFO L138 Inliner]: procedures = 134, calls = 219, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1102 [2024-11-14 03:07:54,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:07:54,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:07:54,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:07:54,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:07:54,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:07:54,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:07:54,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:07:54,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:07:54,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (1/1) ... [2024-11-14 03:07:54,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:07:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:07:54,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:07:54,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:07:54,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-14 03:07:54,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-14 03:07:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-14 03:07:54,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-14 03:07:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 03:07:54,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 03:07:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-14 03:07:54,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-14 03:07:54,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 03:07:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 03:07:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 03:07:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 03:07:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 03:07:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 03:07:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 03:07:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 03:07:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 03:07:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 03:07:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 03:07:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 03:07:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 03:07:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 03:07:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 03:07:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 03:07:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 03:07:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 03:07:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 03:07:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 03:07:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:07:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 03:07:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 03:07:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-14 03:07:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-14 03:07:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-14 03:07:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-14 03:07:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 03:07:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 03:07:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 03:07:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 03:07:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 03:07:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 03:07:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-14 03:07:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-14 03:07:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-14 03:07:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-14 03:07:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 03:07:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 03:07:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 03:07:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 03:07:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 03:07:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 03:07:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 03:07:54,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 03:07:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:07:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 03:07:54,152 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 03:07:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-14 03:07:54,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-14 03:07:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:07:54,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:07:54,416 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:07:54,419 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:07:55,928 INFO L? ?]: Removed 583 outVars from TransFormulas that were not future-live. [2024-11-14 03:07:55,929 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:07:56,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:07:56,945 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:07:56,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:07:56 BoogieIcfgContainer [2024-11-14 03:07:56,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:07:56,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:07:56,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:07:56,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:07:56,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:07:52" (1/3) ... [2024-11-14 03:07:56,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7709f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:07:56, skipping insertion in model container [2024-11-14 03:07:56,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:07:53" (2/3) ... [2024-11-14 03:07:56,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7709f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:07:56, skipping insertion in model container [2024-11-14 03:07:56,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:07:56" (3/3) ... [2024-11-14 03:07:56,959 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product34.cil.c [2024-11-14 03:07:56,979 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:07:56,983 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec1_product34.cil.c that has 29 procedures, 231 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:07:57,072 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:07:57,093 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;@2829ede1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:07:57,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:07:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-14 03:07:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:07:57,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:07:57,118 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:07:57,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:07:57,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:07:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash 27250617, now seen corresponding path program 1 times [2024-11-14 03:07:57,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:07:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829730125] [2024-11-14 03:07:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:57,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:07:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:07:57,746 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:07:57,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:07:57,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829730125] [2024-11-14 03:07:57,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829730125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:07:57,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:07:57,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:07:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125032119] [2024-11-14 03:07:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:07:57,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:07:57,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:07:57,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:07:57,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:07:57,798 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:07:58,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:07:58,069 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2024-11-14 03:07:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:07:58,077 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2024-11-14 03:07:58,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:07:58,096 INFO L225 Difference]: With dead ends: 370 [2024-11-14 03:07:58,097 INFO L226 Difference]: Without dead ends: 228 [2024-11-14 03:07:58,105 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 03:07:58,111 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:07:58,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:07:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-14 03:07:58,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2024-11-14 03:07:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-14 03:07:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2024-11-14 03:07:58,220 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 71 [2024-11-14 03:07:58,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:07:58,222 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2024-11-14 03:07:58,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:07:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2024-11-14 03:07:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:07:58,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:07:58,232 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:07:58,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:07:58,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:07:58,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:07:58,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1897876838, now seen corresponding path program 1 times [2024-11-14 03:07:58,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:07:58,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650478028] [2024-11-14 03:07:58,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:07:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:07:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:07:58,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:07:58,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650478028] [2024-11-14 03:07:58,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650478028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:07:58,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:07:58,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:07:58,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166746403] [2024-11-14 03:07:58,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:07:58,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:07:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:07:58,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:07:58,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:07:58,797 INFO L87 Difference]: Start difference. First operand 228 states and 303 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:07:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:07:59,058 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2024-11-14 03:07:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:07:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2024-11-14 03:07:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:07:59,069 INFO L225 Difference]: With dead ends: 366 [2024-11-14 03:07:59,069 INFO L226 Difference]: Without dead ends: 230 [2024-11-14 03:07:59,070 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 03:07:59,071 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:07:59,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 519 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:07:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-14 03:07:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-11-14 03:07:59,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-14 03:07:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2024-11-14 03:07:59,120 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 72 [2024-11-14 03:07:59,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:07:59,121 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2024-11-14 03:07:59,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:07:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2024-11-14 03:07:59,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:07:59,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:07:59,129 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:07:59,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:07:59,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:07:59,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:07:59,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1293509712, now seen corresponding path program 1 times [2024-11-14 03:07:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:07:59,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142694663] [2024-11-14 03:07:59,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:59,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:07:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:07:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:07:59,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:07:59,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142694663] [2024-11-14 03:07:59,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142694663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:07:59,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:07:59,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:07:59,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838951024] [2024-11-14 03:07:59,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:07:59,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:07:59,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:07:59,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:07:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:07:59,368 INFO L87 Difference]: Start difference. First operand 230 states and 305 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:07:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:07:59,593 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2024-11-14 03:07:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:07:59,594 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2024-11-14 03:07:59,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:07:59,602 INFO L225 Difference]: With dead ends: 495 [2024-11-14 03:07:59,602 INFO L226 Difference]: Without dead ends: 283 [2024-11-14 03:07:59,603 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 03:07:59,604 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 59 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:07:59,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 526 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:07:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-14 03:07:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2024-11-14 03:07:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 03:07:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2024-11-14 03:07:59,665 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 77 [2024-11-14 03:07:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:07:59,666 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2024-11-14 03:07:59,666 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:07:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2024-11-14 03:07:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:07:59,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:07:59,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:07:59,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:07:59,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:07:59,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:07:59,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1824212850, now seen corresponding path program 1 times [2024-11-14 03:07:59,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:07:59,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363674353] [2024-11-14 03:07:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:59,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:07:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:08:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:08:00,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:08:00,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363674353] [2024-11-14 03:08:00,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363674353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:08:00,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576624384] [2024-11-14 03:08:00,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:08:00,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:08:00,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:08:00,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:08:00,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:08:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:08:00,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:08:00,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:08:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:08:00,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:08:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:08:00,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576624384] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:08:00,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [239539379] [2024-11-14 03:08:00,932 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 03:08:00,933 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:08:00,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:08:00,943 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:08:00,944 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:08:30,439 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:08:30,576 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 03:08:30,702 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:09:40,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [239539379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:40,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:09:40,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:09:40,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51528056] [2024-11-14 03:09:40,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:40,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:09:40,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:40,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:09:40,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:09:40,683 INFO L87 Difference]: Start difference. First operand 278 states and 388 transitions. Second operand has 23 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 14 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:09:49,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:49,289 INFO L93 Difference]: Finished difference Result 571 states and 814 transitions. [2024-11-14 03:09:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:09:49,290 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 14 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2024-11-14 03:09:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:49,293 INFO L225 Difference]: With dead ends: 571 [2024-11-14 03:09:49,293 INFO L226 Difference]: Without dead ends: 311 [2024-11-14 03:09:49,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 70.0s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:09:49,295 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 26 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3411 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:49,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3411 Invalid, 1840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 03:09:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-14 03:09:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 301. [2024-11-14 03:09:49,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 186 states have (on average 1.3548387096774193) internal successors, (252), 190 states have internal predecessors, (252), 85 states have call successors, (85), 29 states have call predecessors, (85), 29 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 03:09:49,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 421 transitions. [2024-11-14 03:09:49,369 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 421 transitions. Word has length 78 [2024-11-14 03:09:49,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:49,369 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 421 transitions. [2024-11-14 03:09:49,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 14 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:09:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 421 transitions. [2024-11-14 03:09:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:09:49,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:49,373 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:09:49,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:09:49,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:49,577 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:49,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:49,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1117470309, now seen corresponding path program 1 times [2024-11-14 03:09:49,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:49,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346347533] [2024-11-14 03:09:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:49,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:49,726 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:09:49,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:49,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346347533] [2024-11-14 03:09:49,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346347533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:49,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:49,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:09:49,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854789964] [2024-11-14 03:09:49,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:49,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:09:49,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:09:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:09:49,728 INFO L87 Difference]: Start difference. First operand 301 states and 421 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:09:49,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:49,981 INFO L93 Difference]: Finished difference Result 705 states and 1022 transitions. [2024-11-14 03:09:49,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:09:49,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2024-11-14 03:09:49,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:49,989 INFO L225 Difference]: With dead ends: 705 [2024-11-14 03:09:49,989 INFO L226 Difference]: Without dead ends: 428 [2024-11-14 03:09:49,990 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 03:09:49,991 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 57 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:49,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 532 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:09:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-14 03:09:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 423. [2024-11-14 03:09:50,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 277 states have (on average 1.4151624548736461) internal successors, (392), 281 states have internal predecessors, (392), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-14 03:09:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 623 transitions. [2024-11-14 03:09:50,102 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 623 transitions. Word has length 83 [2024-11-14 03:09:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:50,102 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 623 transitions. [2024-11-14 03:09:50,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:09:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 623 transitions. [2024-11-14 03:09:50,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:09:50,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:50,106 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:09:50,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:09:50,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:50,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1252200000, now seen corresponding path program 1 times [2024-11-14 03:09:50,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:50,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602162062] [2024-11-14 03:09:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:50,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:09:50,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:50,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602162062] [2024-11-14 03:09:50,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602162062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:50,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994572853] [2024-11-14 03:09:50,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:50,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:50,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:09:50,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:09:50,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:09:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:50,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:09:50,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:50,742 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:09:50,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:09:50,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994572853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:09:50,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [664304225] [2024-11-14 03:09:50,841 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:09:50,842 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:09:50,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:09:50,842 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:09:50,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:25,075 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:10:25,196 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 249 for LOIs [2024-11-14 03:10:25,357 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:11:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [664304225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:43,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:11:43,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 03:11:43,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043692053] [2024-11-14 03:11:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:43,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:11:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:11:43,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:11:43,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:11:43,499 INFO L87 Difference]: Start difference. First operand 423 states and 623 transitions. Second operand has 26 states, 17 states have (on average 2.588235294117647) internal successors, (44), 16 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 03:11:54,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:54,755 INFO L93 Difference]: Finished difference Result 856 states and 1289 transitions. [2024-11-14 03:11:54,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 03:11:54,756 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.588235294117647) internal successors, (44), 16 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2024-11-14 03:11:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:54,760 INFO L225 Difference]: With dead ends: 856 [2024-11-14 03:11:54,760 INFO L226 Difference]: Without dead ends: 496 [2024-11-14 03:11:54,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 78.1s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:11:54,762 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 43 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 2663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:54,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3802 Invalid, 2663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-11-14 03:11:54,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-14 03:11:54,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 437. [2024-11-14 03:11:54,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 289 states have (on average 1.4152249134948096) internal successors, (409), 293 states have internal predecessors, (409), 117 states have call successors, (117), 30 states have call predecessors, (117), 30 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-14 03:11:54,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 642 transitions. [2024-11-14 03:11:54,883 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 642 transitions. Word has length 84 [2024-11-14 03:11:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:54,884 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 642 transitions. [2024-11-14 03:11:54,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.588235294117647) internal successors, (44), 16 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 03:11:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 642 transitions. [2024-11-14 03:11:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:11:54,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:54,887 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:11:54,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:11:55,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:55,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:11:55,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -931886769, now seen corresponding path program 1 times [2024-11-14 03:11:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:11:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930124513] [2024-11-14 03:11:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:55,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:11:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:11:55,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:11:55,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930124513] [2024-11-14 03:11:55,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930124513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:55,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223827767] [2024-11-14 03:11:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:55,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:55,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:11:55,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:11:55,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:11:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:55,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:11:55,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:11:55,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:11:55,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223827767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:11:55,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133908156] [2024-11-14 03:11:55,859 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-14 03:11:55,863 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:11:55,863 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:11:55,864 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:11:55,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:12:55,273 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:12:55,397 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 489 for LOIs [2024-11-14 03:12:56,687 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 498 for LOIs [2024-11-14 03:12:57,870 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 434 for LOIs [2024-11-14 03:12:58,337 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 03:12:58,471 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:13:58,710 WARN L286 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 518 DAG size of output: 513 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:14:11,515 WARN L286 SmtUtils]: Spent 11.89s on a formula simplification. DAG size of input: 519 DAG size of output: 513 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:15:05,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [133908156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:15:05,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:15:05,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 03:15:05,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742201347] [2024-11-14 03:15:05,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:15:05,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 03:15:05,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:15:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 03:15:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:15:05,213 INFO L87 Difference]: Start difference. First operand 437 states and 642 transitions. Second operand has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-14 03:15:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:15:30,532 INFO L93 Difference]: Finished difference Result 881 states and 1324 transitions. [2024-11-14 03:15:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 03:15:30,533 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2024-11-14 03:15:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:15:30,537 INFO L225 Difference]: With dead ends: 881 [2024-11-14 03:15:30,537 INFO L226 Difference]: Without dead ends: 521 [2024-11-14 03:15:30,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 126.7s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:15:30,540 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 78 mSDsluCounter, 4016 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 3778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:15:30,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 4255 Invalid, 3778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time] [2024-11-14 03:15:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-14 03:15:30,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 473. [2024-11-14 03:15:30,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 319 states have (on average 1.4137931034482758) internal successors, (451), 323 states have internal predecessors, (451), 120 states have call successors, (120), 33 states have call predecessors, (120), 33 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-14 03:15:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 690 transitions. [2024-11-14 03:15:30,701 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 690 transitions. Word has length 87 [2024-11-14 03:15:30,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:15:30,702 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 690 transitions. [2024-11-14 03:15:30,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-14 03:15:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 690 transitions. [2024-11-14 03:15:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:15:30,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:15:30,705 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:15:30,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:15:30,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:15:30,906 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:15:30,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:15:30,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1730107866, now seen corresponding path program 1 times [2024-11-14 03:15:30,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:15:30,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093359331] [2024-11-14 03:15:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:30,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:15:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:15:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:15:31,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:15:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093359331] [2024-11-14 03:15:31,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093359331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:15:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016733078] [2024-11-14 03:15:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:31,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:15:31,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:15:31,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:15:31,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:15:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:15:31,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:15:31,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:15:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:15:31,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:15:31,767 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:15:31,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016733078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:15:31,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [671096438] [2024-11-14 03:15:31,770 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2024-11-14 03:15:31,771 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:15:31,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:15:31,771 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:15:31,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:16:08,344 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:16:08,457 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 03:16:08,561 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:17:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [671096438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:17:34,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:17:34,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:17:34,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289811393] [2024-11-14 03:17:34,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:17:34,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:17:34,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:17:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:17:34,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:17:34,842 INFO L87 Difference]: Start difference. First operand 473 states and 690 transitions. Second operand has 27 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 18 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:17:47,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:47,578 INFO L93 Difference]: Finished difference Result 882 states and 1313 transitions. [2024-11-14 03:17:47,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:17:47,579 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 18 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 86 [2024-11-14 03:17:47,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:47,584 INFO L225 Difference]: With dead ends: 882 [2024-11-14 03:17:47,585 INFO L226 Difference]: Without dead ends: 522 [2024-11-14 03:17:47,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 86.3s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:17:47,588 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 18 mSDsluCounter, 4142 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:47,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4376 Invalid, 2727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-14 03:17:47,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-14 03:17:47,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 493. [2024-11-14 03:17:47,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 339 states have (on average 1.4188790560471976) internal successors, (481), 343 states have internal predecessors, (481), 120 states have call successors, (120), 33 states have call predecessors, (120), 33 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-14 03:17:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 720 transitions. [2024-11-14 03:17:47,800 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 720 transitions. Word has length 86 [2024-11-14 03:17:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:47,800 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 720 transitions. [2024-11-14 03:17:47,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 18 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:17:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 720 transitions. [2024-11-14 03:17:47,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:17:47,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:47,804 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:17:47,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:17:48,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:48,005 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:48,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash -625194993, now seen corresponding path program 1 times [2024-11-14 03:17:48,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:17:48,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434117214] [2024-11-14 03:17:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:48,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:17:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:48,217 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:17:48,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:17:48,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434117214] [2024-11-14 03:17:48,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434117214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:48,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852093637] [2024-11-14 03:17:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:48,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:48,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:48,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:48,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:17:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:48,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:17:48,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:17:48,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:17:48,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852093637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:17:48,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [545055859] [2024-11-14 03:17:48,881 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:17:48,881 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:17:48,882 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:17:48,882 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:17:48,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:18:19,468 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:18:19,576 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 261 for LOIs [2024-11-14 03:18:22,095 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 226 for LOIs [2024-11-14 03:18:22,164 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2024-11-14 03:18:23,355 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2024-11-14 03:18:26,051 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 218 for LOIs [2024-11-14 03:18:26,129 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 269 for LOIs [2024-11-14 03:18:31,673 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 238 for LOIs [2024-11-14 03:18:31,778 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 236 for LOIs [2024-11-14 03:18:31,870 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 243 for LOIs [2024-11-14 03:18:31,957 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 231 for LOIs [2024-11-14 03:18:32,038 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:18:54,982 WARN L286 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 443 DAG size of output: 444 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:19:05,694 WARN L286 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 467 DAG size of output: 463 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:20:41,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [545055859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:41,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:20:41,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [5, 5, 5] total 65 [2024-11-14 03:20:41,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459481228] [2024-11-14 03:20:41,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:41,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-14 03:20:41,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:41,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-14 03:20:41,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=3970, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 03:20:41,503 INFO L87 Difference]: Start difference. First operand 493 states and 720 transitions. Second operand has 60 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 03:21:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:14,041 INFO L93 Difference]: Finished difference Result 1016 states and 1511 transitions. [2024-11-14 03:21:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 03:21:14,042 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 89 [2024-11-14 03:21:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:14,045 INFO L225 Difference]: With dead ends: 1016 [2024-11-14 03:21:14,045 INFO L226 Difference]: Without dead ends: 616 [2024-11-14 03:21:14,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 204 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1058 ImplicationChecksByTransitivity, 132.2s TimeCoverageRelationStatistics Valid=201, Invalid=4221, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 03:21:14,048 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 121 mSDsluCounter, 6125 mSDsCounter, 0 mSdLazyCounter, 8933 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 6372 SdHoareTripleChecker+Invalid, 8960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 8933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:14,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 6372 Invalid, 8960 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [27 Valid, 8933 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2024-11-14 03:21:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-14 03:21:14,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 540. [2024-11-14 03:21:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 367 states have (on average 1.3896457765667576) internal successors, (510), 371 states have internal predecessors, (510), 131 states have call successors, (131), 44 states have call predecessors, (131), 41 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-14 03:21:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 771 transitions. [2024-11-14 03:21:14,248 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 771 transitions. Word has length 89 [2024-11-14 03:21:14,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:14,248 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 771 transitions. [2024-11-14 03:21:14,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 34 states have internal predecessors, (45), 17 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 03:21:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 771 transitions. [2024-11-14 03:21:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 03:21:14,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:14,251 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:21:14,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:21:14,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:14,452 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:21:14,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2120888839, now seen corresponding path program 1 times [2024-11-14 03:21:14,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:14,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157202086] [2024-11-14 03:21:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:14,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 03:21:16,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:16,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157202086] [2024-11-14 03:21:16,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157202086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:16,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996789494] [2024-11-14 03:21:16,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:16,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:16,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:16,514 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:16,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_776cb304-8c1b-48a0-9238-0704a14a7495/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:21:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:16,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:21:16,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:21:17,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:21:17,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996789494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:21:17,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1204860793] [2024-11-14 03:21:17,182 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2024-11-14 03:21:17,182 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:17,182 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:17,183 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:17,183 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs