./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje --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 5f7b52dfa978a30892cebb35c28a84cc12db47d20591a31b18d58060a0678455 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:17:48,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:17:48,586 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:17:48,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:17:48,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:17:48,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:17:48,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:17:48,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:17:48,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:17:48,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:17:48,651 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:17:48,652 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:17:48,652 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:17:48,652 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:17:48,653 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:17:48,653 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:17:48,656 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:17:48,657 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:17:48,660 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:17:48,661 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:17:48,661 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:17:48,662 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:17:48,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:17:48,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:17:48,663 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:17:48,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:17:48,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:17:48,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:17:48,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:17:48,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:17:48,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:17:48,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:17:48,665 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:17:48,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:17:48,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:17:48,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:17:48,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:17:48,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:17:48,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:17:48,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:17:48,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:17:48,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:17:48,671 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:17:48,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:17:48,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:17:48,672 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:17:48,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:17:48,672 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f7b52dfa978a30892cebb35c28a84cc12db47d20591a31b18d58060a0678455 [2024-11-09 01:17:48,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:17:49,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:17:49,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:17:49,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:17:49,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:17:49,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec7_product34.cil.c Unable to find full path for "g++" [2024-11-09 01:17:51,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:17:51,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:17:51,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/sv-benchmarks/c/product-lines/email_spec7_product34.cil.c [2024-11-09 01:17:51,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/data/238580f05/71192d59df384ffc93a94650b7a98f45/FLAG67cd6719a [2024-11-09 01:17:51,747 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/data/238580f05/71192d59df384ffc93a94650b7a98f45 [2024-11-09 01:17:51,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:17:51,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:17:51,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:17:51,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:17:51,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:17:51,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:17:51" (1/1) ... [2024-11-09 01:17:51,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45212f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:51, skipping insertion in model container [2024-11-09 01:17:51,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:17:51" (1/1) ... [2024-11-09 01:17:51,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:17:52,304 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_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/sv-benchmarks/c/product-lines/email_spec7_product34.cil.c[10988,11001] [2024-11-09 01:17:52,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:17:52,689 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:17:52,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-09 01:17:52,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [380] [2024-11-09 01:17:52,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [528] [2024-11-09 01:17:52,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [547] [2024-11-09 01:17:52,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [556] [2024-11-09 01:17:52,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [922] [2024-11-09 01:17:52,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1324] [2024-11-09 01:17:52,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1359] [2024-11-09 01:17:52,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2428] [2024-11-09 01:17:52,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2445] [2024-11-09 01:17:52,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2842] [2024-11-09 01:17:52,749 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_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/sv-benchmarks/c/product-lines/email_spec7_product34.cil.c[10988,11001] [2024-11-09 01:17:52,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:17:52,935 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:17:52,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52 WrapperNode [2024-11-09 01:17:52,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:17:52,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:17:52,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:17:52,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:17:52,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,138 INFO L138 Inliner]: procedures = 134, calls = 218, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1091 [2024-11-09 01:17:53,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:17:53,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:17:53,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:17:53,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:17:53,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:17:53,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:17:53,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:17:53,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:17:53,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (1/1) ... [2024-11-09 01:17:53,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:17:53,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:17:53,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:17:53,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:17:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 01:17:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 01:17:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-09 01:17:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-09 01:17:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 01:17:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 01:17:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-09 01:17:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-09 01:17:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 01:17:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 01:17:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 01:17:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 01:17:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 01:17:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 01:17:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 01:17:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 01:17:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 01:17:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 01:17:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 01:17:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 01:17:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 01:17:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 01:17:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 01:17:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 01:17:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 01:17:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 01:17:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 01:17:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 01:17:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:17:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 01:17:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 01:17:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 01:17:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 01:17:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-09 01:17:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-09 01:17:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 01:17:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 01:17:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 01:17:53,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 01:17:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 01:17:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 01:17:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2024-11-09 01:17:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2024-11-09 01:17:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 01:17:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 01:17:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 01:17:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 01:17:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 01:17:53,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 01:17:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 01:17:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 01:17:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 01:17:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 01:17:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:17:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 01:17:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 01:17:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-09 01:17:53,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-09 01:17:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:17:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:17:53,766 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:17:53,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:17:55,361 INFO L? ?]: Removed 580 outVars from TransFormulas that were not future-live. [2024-11-09 01:17:55,361 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:17:56,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:17:56,250 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:17:56,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:17:56 BoogieIcfgContainer [2024-11-09 01:17:56,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:17:56,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:17:56,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:17:56,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:17:56,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:17:51" (1/3) ... [2024-11-09 01:17:56,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39273466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:17:56, skipping insertion in model container [2024-11-09 01:17:56,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:17:52" (2/3) ... [2024-11-09 01:17:56,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39273466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:17:56, skipping insertion in model container [2024-11-09 01:17:56,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:17:56" (3/3) ... [2024-11-09 01:17:56,260 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product34.cil.c [2024-11-09 01:17:56,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:17:56,281 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:17:56,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:17:56,373 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;@35dbf0d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:17:56,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:17:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-09 01:17:56,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 01:17:56,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:56,399 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:17:56,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:56,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1007982650, now seen corresponding path program 1 times [2024-11-09 01:17:56,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:56,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791476712] [2024-11-09 01:17:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:56,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:17:56,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:56,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791476712] [2024-11-09 01:17:56,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791476712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:56,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:56,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:17:56,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290746711] [2024-11-09 01:17:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:56,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:17:56,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:17:56,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:17:56,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:17:56,901 INFO L87 Difference]: Start difference. First operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 01:17:57,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:57,067 INFO L93 Difference]: Finished difference Result 364 states and 481 transitions. [2024-11-09 01:17:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:17:57,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 84 [2024-11-09 01:17:57,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:57,089 INFO L225 Difference]: With dead ends: 364 [2024-11-09 01:17:57,090 INFO L226 Difference]: Without dead ends: 225 [2024-11-09 01:17:57,100 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 [2024-11-09 01:17:57,104 INFO L432 NwaCegarLoop]: 258 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, 258 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:57,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:17:57,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-09 01:17:57,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-11-09 01:17:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 126 states have (on average 1.2619047619047619) internal successors, (159), 130 states have internal predecessors, (159), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-09 01:17:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 298 transitions. [2024-11-09 01:17:57,190 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 298 transitions. Word has length 84 [2024-11-09 01:17:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:57,193 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 298 transitions. [2024-11-09 01:17:57,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 01:17:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 298 transitions. [2024-11-09 01:17:57,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 01:17:57,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:57,200 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:17:57,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:17:57,201 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:57,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1940790755, now seen corresponding path program 1 times [2024-11-09 01:17:57,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:57,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514572350] [2024-11-09 01:17:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:57,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:17:57,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:57,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514572350] [2024-11-09 01:17:57,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514572350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:57,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:57,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:17:57,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145869697] [2024-11-09 01:17:57,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:57,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:17:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:17:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:17:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:17:57,566 INFO L87 Difference]: Start difference. First operand 225 states and 298 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 01:17:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:57,717 INFO L93 Difference]: Finished difference Result 360 states and 466 transitions. [2024-11-09 01:17:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:17:57,718 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 85 [2024-11-09 01:17:57,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:57,721 INFO L225 Difference]: With dead ends: 360 [2024-11-09 01:17:57,721 INFO L226 Difference]: Without dead ends: 227 [2024-11-09 01:17:57,722 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 [2024-11-09 01:17:57,723 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:57,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:17:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-09 01:17:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-09 01:17:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 128 states have (on average 1.2578125) internal successors, (161), 132 states have internal predecessors, (161), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-09 01:17:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2024-11-09 01:17:57,745 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 85 [2024-11-09 01:17:57,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:57,745 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2024-11-09 01:17:57,746 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 01:17:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2024-11-09 01:17:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 01:17:57,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:57,749 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:17:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:17:57,749 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:57,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash 539660202, now seen corresponding path program 1 times [2024-11-09 01:17:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717636460] [2024-11-09 01:17:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:17:57,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:57,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717636460] [2024-11-09 01:17:57,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717636460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:57,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:57,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:17:57,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256075068] [2024-11-09 01:17:57,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:57,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:17:57,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:17:57,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:17:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:17:57,943 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:17:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:58,098 INFO L93 Difference]: Finished difference Result 489 states and 667 transitions. [2024-11-09 01:17:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:17:58,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 101 [2024-11-09 01:17:58,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:58,102 INFO L225 Difference]: With dead ends: 489 [2024-11-09 01:17:58,102 INFO L226 Difference]: Without dead ends: 280 [2024-11-09 01:17:58,103 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 [2024-11-09 01:17:58,104 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 59 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:58,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 519 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:17:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-09 01:17:58,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2024-11-09 01:17:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 166 states have internal predecessors, (216), 84 states have call successors, (84), 28 states have call predecessors, (84), 28 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 01:17:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 383 transitions. [2024-11-09 01:17:58,132 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 383 transitions. Word has length 101 [2024-11-09 01:17:58,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:58,132 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 383 transitions. [2024-11-09 01:17:58,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 01:17:58,133 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 383 transitions. [2024-11-09 01:17:58,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 01:17:58,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:58,136 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:17:58,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:17:58,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:58,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2050452677, now seen corresponding path program 1 times [2024-11-09 01:17:58,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258677299] [2024-11-09 01:17:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:58,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:17:58,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:58,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258677299] [2024-11-09 01:17:58,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258677299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:17:58,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446200190] [2024-11-09 01:17:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:58,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:17:58,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:17:58,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:17:58,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:17:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:58,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:17:59,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:17:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:17:59,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:17:59,260 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:17:59,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446200190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:17:59,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1696963769] [2024-11-09 01:17:59,288 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-09 01:17:59,288 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:17:59,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:17:59,299 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:17:59,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:18:32,139 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:18:32,292 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 01:18:32,515 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:19:40,595 WARN L286 SmtUtils]: Spent 13.29s on a formula simplification. DAG size of input: 455 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:19:55,050 WARN L286 SmtUtils]: Spent 13.24s on a formula simplification. DAG size of input: 455 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:20:00,697 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 458 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:20:05,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1696963769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:05,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:20:05,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 01:20:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926155371] [2024-11-09 01:20:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:06,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:20:06,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:20:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:20:06,004 INFO L87 Difference]: Start difference. First operand 275 states and 383 transitions. Second operand has 23 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 14 states have internal predecessors, (49), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-09 01:20:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:16,621 INFO L93 Difference]: Finished difference Result 565 states and 804 transitions. [2024-11-09 01:20:16,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 01:20:16,622 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 14 states have internal predecessors, (49), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 102 [2024-11-09 01:20:16,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:16,627 INFO L225 Difference]: With dead ends: 565 [2024-11-09 01:20:16,627 INFO L226 Difference]: Without dead ends: 308 [2024-11-09 01:20:16,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 281 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 93.5s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:20:16,630 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 26 mSDsluCounter, 3567 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:16,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3802 Invalid, 1961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-09 01:20:16,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-09 01:20:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 298. [2024-11-09 01:20:16,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 184 states have (on average 1.3532608695652173) internal successors, (249), 188 states have internal predecessors, (249), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 01:20:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 416 transitions. [2024-11-09 01:20:16,715 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 416 transitions. Word has length 102 [2024-11-09 01:20:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:16,716 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 416 transitions. [2024-11-09 01:20:16,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 14 states have internal predecessors, (49), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-09 01:20:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 416 transitions. [2024-11-09 01:20:16,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 01:20:16,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:16,719 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:16,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:20:16,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:16,924 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:16,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:16,925 INFO L85 PathProgramCache]: Analyzing trace with hash 933193851, now seen corresponding path program 1 times [2024-11-09 01:20:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839048656] [2024-11-09 01:20:16,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:16,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:20:17,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:17,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839048656] [2024-11-09 01:20:17,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839048656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:17,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:20:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58239400] [2024-11-09 01:20:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:17,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:20:17,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:17,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:20:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:20:17,071 INFO L87 Difference]: Start difference. First operand 298 states and 416 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 01:20:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:17,323 INFO L93 Difference]: Finished difference Result 699 states and 1012 transitions. [2024-11-09 01:20:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:20:17,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2024-11-09 01:20:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:17,330 INFO L225 Difference]: With dead ends: 699 [2024-11-09 01:20:17,330 INFO L226 Difference]: Without dead ends: 425 [2024-11-09 01:20:17,332 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 [2024-11-09 01:20:17,337 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 57 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 526 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 [2024-11-09 01:20:17,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 526 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:20:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-09 01:20:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 420. [2024-11-09 01:20:17,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 275 states have (on average 1.4145454545454546) internal successors, (389), 279 states have internal predecessors, (389), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (114), 113 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-09 01:20:17,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 618 transitions. [2024-11-09 01:20:17,498 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 618 transitions. Word has length 96 [2024-11-09 01:20:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:17,499 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 618 transitions. [2024-11-09 01:20:17,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 01:20:17,499 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 618 transitions. [2024-11-09 01:20:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 01:20:17,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:17,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:17,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:20:17,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:17,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1047507750, now seen corresponding path program 1 times [2024-11-09 01:20:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:17,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799473138] [2024-11-09 01:20:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:17,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 01:20:17,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:17,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799473138] [2024-11-09 01:20:17,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799473138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:17,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440996246] [2024-11-09 01:20:17,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:17,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:17,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:17,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:17,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:20:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:18,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:20:18,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 01:20:18,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 01:20:18,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440996246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:20:18,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [464168371] [2024-11-09 01:20:18,481 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2024-11-09 01:20:18,481 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:18,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:18,482 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:18,482 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:21:03,592 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:21:03,753 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 440 for LOIs [2024-11-09 01:21:05,264 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:21:31,453 WARN L286 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 440 DAG size of output: 440 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:21:43,646 WARN L286 SmtUtils]: Spent 11.77s on a formula simplification. DAG size of input: 464 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:22:32,836 WARN L286 SmtUtils]: Spent 12.51s on a formula simplification. DAG size of input: 457 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:22:46,324 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification. DAG size of input: 457 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:23:09,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [464168371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:23:09,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:23:09,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 01:23:09,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68385313] [2024-11-09 01:23:09,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:23:09,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 01:23:09,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:09,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 01:23:09,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:23:09,489 INFO L87 Difference]: Start difference. First operand 420 states and 618 transitions. Second operand has 26 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-09 01:23:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:23,698 INFO L93 Difference]: Finished difference Result 850 states and 1279 transitions. [2024-11-09 01:23:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 01:23:23,699 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 108 [2024-11-09 01:23:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:23,703 INFO L225 Difference]: With dead ends: 850 [2024-11-09 01:23:23,703 INFO L226 Difference]: Without dead ends: 493 [2024-11-09 01:23:23,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 295 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 124.2s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:23:23,706 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 43 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:23,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3810 Invalid, 2584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-09 01:23:23,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-09 01:23:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 434. [2024-11-09 01:23:23,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 287 states have (on average 1.4146341463414633) internal successors, (406), 291 states have internal predecessors, (406), 116 states have call successors, (116), 30 states have call predecessors, (116), 30 states have return successors, (115), 114 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-09 01:23:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 637 transitions. [2024-11-09 01:23:23,832 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 637 transitions. Word has length 108 [2024-11-09 01:23:23,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:23,832 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 637 transitions. [2024-11-09 01:23:23,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-09 01:23:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 637 transitions. [2024-11-09 01:23:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 01:23:23,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:23,836 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:23,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 01:23:24,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:24,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:23:24,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:24,042 INFO L85 PathProgramCache]: Analyzing trace with hash 82427062, now seen corresponding path program 1 times [2024-11-09 01:23:24,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:23:24,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390143482] [2024-11-09 01:23:24,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:24,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:23:24,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:24,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390143482] [2024-11-09 01:23:24,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390143482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:23:24,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57730427] [2024-11-09 01:23:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:24,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:23:24,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:23:24,289 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:23:24,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:23:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:24,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:23:24,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:23:24,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:23:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:23:25,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57730427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:23:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [757993502] [2024-11-09 01:23:25,043 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2024-11-09 01:23:25,043 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:23:25,044 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:23:25,044 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:23:25,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:24:32,915 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:24:33,056 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 486 for LOIs [2024-11-09 01:24:34,370 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 495 for LOIs [2024-11-09 01:24:35,773 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 431 for LOIs [2024-11-09 01:24:36,251 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 01:24:36,375 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:25:47,617 WARN L286 SmtUtils]: Spent 15.49s on a formula simplification. DAG size of input: 515 DAG size of output: 510 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:03,588 WARN L286 SmtUtils]: Spent 14.92s on a formula simplification. DAG size of input: 515 DAG size of output: 510 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:26,229 WARN L286 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 496 DAG size of output: 496 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:32,841 WARN L286 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 501 DAG size of output: 497 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:39,179 WARN L286 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 495 DAG size of output: 491 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:45,633 WARN L286 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 495 DAG size of output: 491 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:52,094 WARN L286 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 491 DAG size of output: 487 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:58,426 WARN L286 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:27:04,884 WARN L286 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:27:11,345 WARN L286 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 482 DAG size of output: 478 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:27:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [757993502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:11,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:27:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 01:27:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908421437] [2024-11-09 01:27:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:11,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 01:27:11,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:11,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 01:27:11,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:27:11,353 INFO L87 Difference]: Start difference. First operand 434 states and 637 transitions. Second operand has 33 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (23), 10 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-09 01:27:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:35,130 INFO L93 Difference]: Finished difference Result 875 states and 1314 transitions. [2024-11-09 01:27:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 01:27:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (23), 10 states have call predecessors, (23), 10 states have call successors, (23) Word has length 111 [2024-11-09 01:27:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:35,136 INFO L225 Difference]: With dead ends: 875 [2024-11-09 01:27:35,136 INFO L226 Difference]: Without dead ends: 518 [2024-11-09 01:27:35,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 155.0s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:27:35,140 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 104 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 3640 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:35,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 4276 Invalid, 3649 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3640 Invalid, 0 Unknown, 0 Unchecked, 23.4s Time] [2024-11-09 01:27:35,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-09 01:27:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 470. [2024-11-09 01:27:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 317 states have (on average 1.413249211356467) internal successors, (448), 321 states have internal predecessors, (448), 119 states have call successors, (119), 33 states have call predecessors, (119), 33 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-09 01:27:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 685 transitions. [2024-11-09 01:27:35,326 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 685 transitions. Word has length 111 [2024-11-09 01:27:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:35,327 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 685 transitions. [2024-11-09 01:27:35,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.736842105263158) internal successors, (52), 18 states have internal predecessors, (52), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (23), 10 states have call predecessors, (23), 10 states have call successors, (23) [2024-11-09 01:27:35,327 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 685 transitions. [2024-11-09 01:27:35,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 01:27:35,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:35,330 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:35,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:35,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:35,531 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:27:35,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:35,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1425406479, now seen corresponding path program 1 times [2024-11-09 01:27:35,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:35,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917401062] [2024-11-09 01:27:35,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:35,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:27:35,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917401062] [2024-11-09 01:27:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917401062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:27:35,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204049945] [2024-11-09 01:27:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:35,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:35,852 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:35,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:27:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:36,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:27:36,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:27:36,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:27:36,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204049945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:36,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [281584620] [2024-11-09 01:27:36,607 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2024-11-09 01:27:36,607 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:27:36,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:27:36,608 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:27:36,608 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:28:27,642 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:28:27,775 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 01:28:27,908 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:29:33,058 WARN L286 SmtUtils]: Spent 11.74s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:45,852 WARN L286 SmtUtils]: Spent 11.70s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:59,188 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification. DAG size of input: 460 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:12,205 WARN L286 SmtUtils]: Spent 11.63s on a formula simplification. DAG size of input: 460 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:26,609 WARN L286 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 460 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:41,583 WARN L286 SmtUtils]: Spent 11.71s on a formula simplification. DAG size of input: 460 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:53,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [281584620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:30:53,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:30:53,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 01:30:53,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182340884] [2024-11-09 01:30:53,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:30:53,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:30:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:30:53,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:30:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:30:53,133 INFO L87 Difference]: Start difference. First operand 470 states and 685 transitions. Second operand has 27 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-09 01:31:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:06,485 INFO L93 Difference]: Finished difference Result 876 states and 1303 transitions. [2024-11-09 01:31:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 01:31:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 110 [2024-11-09 01:31:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:06,489 INFO L225 Difference]: With dead ends: 876 [2024-11-09 01:31:06,490 INFO L226 Difference]: Without dead ends: 519 [2024-11-09 01:31:06,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 298 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 145.2s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:31:06,492 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 18 mSDsluCounter, 3620 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:06,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3849 Invalid, 2293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2024-11-09 01:31:06,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-09 01:31:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 490. [2024-11-09 01:31:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 337 states have (on average 1.4183976261127595) internal successors, (478), 341 states have internal predecessors, (478), 119 states have call successors, (119), 33 states have call predecessors, (119), 33 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-09 01:31:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 715 transitions. [2024-11-09 01:31:06,687 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 715 transitions. Word has length 110 [2024-11-09 01:31:06,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:06,688 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 715 transitions. [2024-11-09 01:31:06,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 7 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-09 01:31:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 715 transitions. [2024-11-09 01:31:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:31:06,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:06,692 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:06,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:31:06,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 01:31:06,895 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:06,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:06,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1160086415, now seen corresponding path program 1 times [2024-11-09 01:31:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:06,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322634867] [2024-11-09 01:31:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:06,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 01:31:07,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:07,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322634867] [2024-11-09 01:31:07,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322634867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:07,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:31:07,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 01:31:07,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175055799] [2024-11-09 01:31:07,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:07,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:31:07,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:07,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:31:07,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:31:07,526 INFO L87 Difference]: Start difference. First operand 490 states and 715 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-09 01:31:09,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:09,202 INFO L93 Difference]: Finished difference Result 963 states and 1389 transitions. [2024-11-09 01:31:09,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 01:31:09,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 113 [2024-11-09 01:31:09,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:09,210 INFO L225 Difference]: With dead ends: 963 [2024-11-09 01:31:09,210 INFO L226 Difference]: Without dead ends: 835 [2024-11-09 01:31:09,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:31:09,213 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 409 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:09,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1713 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 01:31:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-09 01:31:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 828. [2024-11-09 01:31:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 550 states have (on average 1.4272727272727272) internal successors, (785), 558 states have internal predecessors, (785), 219 states have call successors, (219), 59 states have call predecessors, (219), 58 states have return successors, (215), 214 states have call predecessors, (215), 215 states have call successors, (215) [2024-11-09 01:31:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1219 transitions. [2024-11-09 01:31:09,573 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1219 transitions. Word has length 113 [2024-11-09 01:31:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:09,574 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1219 transitions. [2024-11-09 01:31:09,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 6 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-09 01:31:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1219 transitions. [2024-11-09 01:31:09,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 01:31:09,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:09,579 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:09,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:31:09,580 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:09,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:09,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1574605402, now seen corresponding path program 1 times [2024-11-09 01:31:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:09,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562559723] [2024-11-09 01:31:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:09,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:10,902 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 01:31:10,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:10,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562559723] [2024-11-09 01:31:10,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562559723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:10,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:31:10,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-09 01:31:10,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397446463] [2024-11-09 01:31:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:10,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 01:31:10,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:10,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 01:31:10,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:31:10,906 INFO L87 Difference]: Start difference. First operand 828 states and 1219 transitions. Second operand has 21 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 11 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-09 01:31:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:13,778 INFO L93 Difference]: Finished difference Result 1225 states and 1760 transitions. [2024-11-09 01:31:13,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 01:31:13,779 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 11 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 102 [2024-11-09 01:31:13,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:13,791 INFO L225 Difference]: With dead ends: 1225 [2024-11-09 01:31:13,792 INFO L226 Difference]: Without dead ends: 1221 [2024-11-09 01:31:13,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=1067, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 01:31:13,795 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 370 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 3368 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:13,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 3202 Invalid, 3452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3368 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 01:31:13,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-11-09 01:31:14,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1207. [2024-11-09 01:31:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 763 states have (on average 1.3564875491480997) internal successors, (1035), 776 states have internal predecessors, (1035), 347 states have call successors, (347), 96 states have call predecessors, (347), 96 states have return successors, (346), 338 states have call predecessors, (346), 336 states have call successors, (346) [2024-11-09 01:31:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1728 transitions. [2024-11-09 01:31:14,170 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1728 transitions. Word has length 102 [2024-11-09 01:31:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:14,170 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1728 transitions. [2024-11-09 01:31:14,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 11 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-09 01:31:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1728 transitions. [2024-11-09 01:31:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 01:31:14,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:14,176 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:14,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 01:31:14,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:14,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:14,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1509730057, now seen corresponding path program 1 times [2024-11-09 01:31:14,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:14,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353362153] [2024-11-09 01:31:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:14,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:31:14,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:14,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353362153] [2024-11-09 01:31:14,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353362153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:14,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148913762] [2024-11-09 01:31:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:14,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:14,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:14,403 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:14,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28f2967-aeb1-45a9-8845-bfaaed0cf56c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:31:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:14,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:31:14,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:31:14,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:31:15,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148913762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:31:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1415577821] [2024-11-09 01:31:15,101 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2024-11-09 01:31:15,102 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:31:15,102 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:31:15,103 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:31:15,103 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs