./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh --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 c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:50:54,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:50:54,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:50:54,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:50:54,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:50:54,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:50:54,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:50:54,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:50:54,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:50:54,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:50:54,486 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:50:54,486 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:50:54,487 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:50:54,487 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:50:54,488 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:50:54,488 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:50:54,489 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:50:54,489 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:50:54,490 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:50:54,491 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:50:54,491 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:50:54,494 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:50:54,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:50:54,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:50:54,495 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:50:54,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:50:54,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:50:54,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:50:54,496 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:50:54,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:50:54,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:50:54,497 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:50:54,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:50:54,498 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:50:54,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:50:54,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:50:54,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:50:54,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:50:54,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:50:54,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:50:54,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:50:54,500 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:50:54,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:50:54,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:50:54,500 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:50:54,501 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:50:54,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:50:54,501 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_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c862f9fbd969695db1625134466cee856e407b57f937740cfce5c982a0b9c02a [2023-12-02 13:50:54,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:50:54,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:50:54,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:50:54,711 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:50:54,712 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:50:54,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2023-12-02 13:50:57,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:50:57,718 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:50:57,719 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c [2023-12-02 13:50:57,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/data/c4b67b2fc/f776a8ea7c4946e388fc84eaab69dcce/FLAG1b3f011ff [2023-12-02 13:50:57,754 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/data/c4b67b2fc/f776a8ea7c4946e388fc84eaab69dcce [2023-12-02 13:50:57,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:50:57,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:50:57,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:50:57,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:50:57,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:50:57,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:50:57" (1/1) ... [2023-12-02 13:50:57,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7072686b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:57, skipping insertion in model container [2023-12-02 13:50:57,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:50:57" (1/1) ... [2023-12-02 13:50:57,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:50:58,266 WARN L240 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_65ded7b3-e4ed-4b70-9539-0702e40052d8/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2023-12-02 13:50:58,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:50:58,320 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:50:58,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2023-12-02 13:50:58,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [418] [2023-12-02 13:50:58,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1490] [2023-12-02 13:50:58,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1588] [2023-12-02 13:50:58,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1989] [2023-12-02 13:50:58,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2006] [2023-12-02 13:50:58,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2235] [2023-12-02 13:50:58,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2267] [2023-12-02 13:50:58,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2633] [2023-12-02 13:50:58,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2642] [2023-12-02 13:50:58,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2933] [2023-12-02 13:50:58,428 WARN L240 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_65ded7b3-e4ed-4b70-9539-0702e40052d8/sv-benchmarks/c/product-lines/email_spec27_product25.cil.c[58911,58924] [2023-12-02 13:50:58,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:50:58,467 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:50:58,474 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:50:58,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58 WrapperNode [2023-12-02 13:50:58,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:50:58,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:50:58,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:50:58,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:50:58,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,554 INFO L138 Inliner]: procedures = 130, calls = 219, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1053 [2023-12-02 13:50:58,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:50:58,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:50:58,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:50:58,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:50:58,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:50:58,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:50:58,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:50:58,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:50:58,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (1/1) ... [2023-12-02 13:50:58,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:50:58,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:50:58,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:50:58,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:50:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 13:50:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 13:50:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 13:50:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 13:50:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-02 13:50:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-02 13:50:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:50:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:50:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:50:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:50:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 13:50:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 13:50:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:50:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:50:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 13:50:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 13:50:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:50:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:50:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:50:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 13:50:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 13:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:50:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 13:50:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 13:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 13:50:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 13:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:50:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:50:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:50:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:50:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:50:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:50:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-12-02 13:50:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-12-02 13:50:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 13:50:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 13:50:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:50:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:50:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:50:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:50:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:50:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:50:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:50:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:50:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:50:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 13:50:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 13:50:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:50:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:50:58,966 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:50:58,969 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:50:59,743 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:51:00,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:51:00,256 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:51:00,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:00 BoogieIcfgContainer [2023-12-02 13:51:00,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:51:00,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:51:00,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:51:00,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:51:00,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:50:57" (1/3) ... [2023-12-02 13:51:00,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c845850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:51:00, skipping insertion in model container [2023-12-02 13:51:00,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:58" (2/3) ... [2023-12-02 13:51:00,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c845850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:51:00, skipping insertion in model container [2023-12-02 13:51:00,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:00" (3/3) ... [2023-12-02 13:51:00,266 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2023-12-02 13:51:00,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:51:00,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:51:00,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:51:00,333 INFO L357 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, mHoare=true, 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;@4565785f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:51:00,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:51:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 110 states have (on average 1.309090909090909) internal successors, (144), 113 states have internal predecessors, (144), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-02 13:51:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 13:51:00,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:51:00,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:51:00,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:51:00,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:51:00,358 INFO L85 PathProgramCache]: Analyzing trace with hash 81212576, now seen corresponding path program 1 times [2023-12-02 13:51:00,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:51:00,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721514577] [2023-12-02 13:51:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:00,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:51:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:51:00,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:51:00,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721514577] [2023-12-02 13:51:00,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721514577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:51:00,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:51:00,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:51:00,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563849862] [2023-12-02 13:51:00,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:51:00,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:51:00,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:51:00,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:51:00,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:51:00,741 INFO L87 Difference]: Start difference. First operand has 193 states, 110 states have (on average 1.309090909090909) internal successors, (144), 113 states have internal predecessors, (144), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:51:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:51:00,875 INFO L93 Difference]: Finished difference Result 294 states and 391 transitions. [2023-12-02 13:51:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:51:00,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2023-12-02 13:51:00,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:51:00,889 INFO L225 Difference]: With dead ends: 294 [2023-12-02 13:51:00,889 INFO L226 Difference]: Without dead ends: 190 [2023-12-02 13:51:00,894 INFO L412 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 [2023-12-02 13:51:00,897 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:51:00,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:51:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-12-02 13:51:00,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-12-02 13:51:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 108 states have (on average 1.2777777777777777) internal successors, (138), 110 states have internal predecessors, (138), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-02 13:51:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 253 transitions. [2023-12-02 13:51:00,951 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 253 transitions. Word has length 75 [2023-12-02 13:51:00,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:51:00,953 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 253 transitions. [2023-12-02 13:51:00,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:51:00,954 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 253 transitions. [2023-12-02 13:51:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 13:51:00,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:51:00,959 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:51:00,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:51:00,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:51:00,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:51:00,961 INFO L85 PathProgramCache]: Analyzing trace with hash -75271096, now seen corresponding path program 1 times [2023-12-02 13:51:00,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:51:00,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697953679] [2023-12-02 13:51:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:51:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:01,171 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:51:01,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:51:01,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697953679] [2023-12-02 13:51:01,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697953679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:51:01,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:51:01,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:51:01,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109299278] [2023-12-02 13:51:01,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:51:01,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:51:01,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:51:01,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:51:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:51:01,176 INFO L87 Difference]: Start difference. First operand 190 states and 253 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:51:01,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:51:01,295 INFO L93 Difference]: Finished difference Result 290 states and 376 transitions. [2023-12-02 13:51:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:51:01,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2023-12-02 13:51:01,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:51:01,299 INFO L225 Difference]: With dead ends: 290 [2023-12-02 13:51:01,299 INFO L226 Difference]: Without dead ends: 192 [2023-12-02 13:51:01,301 INFO L412 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 [2023-12-02 13:51:01,303 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:51:01,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:51:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-02 13:51:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-12-02 13:51:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 110 states have (on average 1.2727272727272727) internal successors, (140), 112 states have internal predecessors, (140), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-02 13:51:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 255 transitions. [2023-12-02 13:51:01,328 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 255 transitions. Word has length 76 [2023-12-02 13:51:01,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:51:01,328 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 255 transitions. [2023-12-02 13:51:01,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:51:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 255 transitions. [2023-12-02 13:51:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 13:51:01,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:51:01,333 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:51:01,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:51:01,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:51:01,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:51:01,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1672603953, now seen corresponding path program 1 times [2023-12-02 13:51:01,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:51:01,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8477013] [2023-12-02 13:51:01,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:01,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:51:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:51:01,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:51:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8477013] [2023-12-02 13:51:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8477013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:51:01,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:51:01,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:51:01,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699615782] [2023-12-02 13:51:01,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:51:01,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:51:01,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:51:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:51:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:51:01,458 INFO L87 Difference]: Start difference. First operand 192 states and 255 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:51:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:51:01,577 INFO L93 Difference]: Finished difference Result 419 states and 577 transitions. [2023-12-02 13:51:01,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:51:01,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2023-12-02 13:51:01,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:51:01,581 INFO L225 Difference]: With dead ends: 419 [2023-12-02 13:51:01,581 INFO L226 Difference]: Without dead ends: 245 [2023-12-02 13:51:01,582 INFO L412 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 [2023-12-02 13:51:01,583 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 59 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:51:01,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 436 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:51:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-02 13:51:01,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2023-12-02 13:51:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 144 states have (on average 1.3541666666666667) internal successors, (195), 146 states have internal predecessors, (195), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 13:51:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 338 transitions. [2023-12-02 13:51:01,610 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 338 transitions. Word has length 81 [2023-12-02 13:51:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:51:01,611 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 338 transitions. [2023-12-02 13:51:01,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 13:51:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 338 transitions. [2023-12-02 13:51:01,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 13:51:01,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:51:01,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:51:01,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:51:01,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:51:01,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:51:01,615 INFO L85 PathProgramCache]: Analyzing trace with hash 622110864, now seen corresponding path program 1 times [2023-12-02 13:51:01,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:51:01,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544704544] [2023-12-02 13:51:01,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:51:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:51:01,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:51:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544704544] [2023-12-02 13:51:01,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544704544] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:51:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321551371] [2023-12-02 13:51:01,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:51:01,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:51:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:51:01,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:51:01,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:51:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:51:02,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:51:02,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:51:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:51:02,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:51:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:51:02,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321551371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:51:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [971064141] [2023-12-02 13:51:02,331 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 13:51:02,332 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:51:02,335 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:51:02,341 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:51:02,341 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:51:45,949 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:51:46,120 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 13:51:46,351 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:52:41,836 WARN L293 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 494 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:52:56,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [971064141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:52:56,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:52:56,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:52:56,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114763691] [2023-12-02 13:52:56,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:52:56,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:52:56,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:52:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:52:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:52:56,254 INFO L87 Difference]: Start difference. First operand 240 states and 338 transitions. Second operand has 24 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-02 13:53:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:53:10,076 INFO L93 Difference]: Finished difference Result 527 states and 776 transitions. [2023-12-02 13:53:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:53:10,077 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 82 [2023-12-02 13:53:10,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:53:10,080 INFO L225 Difference]: With dead ends: 527 [2023-12-02 13:53:10,080 INFO L226 Difference]: Without dead ends: 305 [2023-12-02 13:53:10,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 73.1s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 13:53:10,082 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 87 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:53:10,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2751 Invalid, 2336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-02 13:53:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-12-02 13:53:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 263. [2023-12-02 13:53:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 168 states have internal predecessors, (228), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 13:53:10,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 371 transitions. [2023-12-02 13:53:10,151 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 371 transitions. Word has length 82 [2023-12-02 13:53:10,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:53:10,151 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 371 transitions. [2023-12-02 13:53:10,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.6875) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-02 13:53:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 371 transitions. [2023-12-02 13:53:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 13:53:10,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:53:10,155 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:53:10,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:53:10,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:53:10,359 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:53:10,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:53:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1647415861, now seen corresponding path program 1 times [2023-12-02 13:53:10,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:53:10,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896970392] [2023-12-02 13:53:10,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:10,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:53:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:53:10,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:53:10,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896970392] [2023-12-02 13:53:10,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896970392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:53:10,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:53:10,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:53:10,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634185415] [2023-12-02 13:53:10,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:53:10,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:53:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:53:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:53:10,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:53:10,455 INFO L87 Difference]: Start difference. First operand 263 states and 371 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 13:53:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:53:10,682 INFO L93 Difference]: Finished difference Result 629 states and 922 transitions. [2023-12-02 13:53:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:53:10,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2023-12-02 13:53:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:53:10,686 INFO L225 Difference]: With dead ends: 629 [2023-12-02 13:53:10,687 INFO L226 Difference]: Without dead ends: 390 [2023-12-02 13:53:10,688 INFO L412 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 [2023-12-02 13:53:10,689 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 57 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:53:10,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 433 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:53:10,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-02 13:53:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 385. [2023-12-02 13:53:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 257 states have (on average 1.4319066147859922) internal successors, (368), 259 states have internal predecessors, (368), 103 states have call successors, (103), 24 states have call predecessors, (103), 24 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-02 13:53:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 573 transitions. [2023-12-02 13:53:10,801 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 573 transitions. Word has length 87 [2023-12-02 13:53:10,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:53:10,801 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 573 transitions. [2023-12-02 13:53:10,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 13:53:10,802 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 573 transitions. [2023-12-02 13:53:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 13:53:10,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:53:10,805 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:53:10,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:53:10,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:53:10,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:53:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1899903943, now seen corresponding path program 1 times [2023-12-02 13:53:10,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:53:10,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733972538] [2023-12-02 13:53:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:53:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:53:10,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:53:10,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733972538] [2023-12-02 13:53:10,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733972538] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:53:10,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66358210] [2023-12-02 13:53:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:10,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:53:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:53:10,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:53:10,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:53:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:11,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:53:11,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:53:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:53:11,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:53:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:53:11,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66358210] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:53:11,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2110882842] [2023-12-02 13:53:11,324 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 13:53:11,325 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:53:11,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:53:11,325 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:53:11,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:54:11,616 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:54:11,775 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 13:54:13,855 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:54:35,381 WARN L293 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:54:45,148 WARN L293 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:55:22,960 WARN L293 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:55:50,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2110882842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:55:50,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:55:50,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:55:50,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833652473] [2023-12-02 13:55:50,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:55:50,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:55:50,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:55:50,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:55:50,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:55:50,771 INFO L87 Difference]: Start difference. First operand 385 states and 573 transitions. Second operand has 28 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2023-12-02 13:56:02,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:56:02,830 INFO L93 Difference]: Finished difference Result 788 states and 1203 transitions. [2023-12-02 13:56:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:56:02,831 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 88 [2023-12-02 13:56:02,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:56:02,835 INFO L225 Difference]: With dead ends: 788 [2023-12-02 13:56:02,835 INFO L226 Difference]: Without dead ends: 466 [2023-12-02 13:56:02,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 96.9s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:56:02,837 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 151 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:56:02,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 2895 Invalid, 2406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-12-02 13:56:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-12-02 13:56:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 399. [2023-12-02 13:56:02,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 269 states have (on average 1.4312267657992566) internal successors, (385), 271 states have internal predecessors, (385), 104 states have call successors, (104), 25 states have call predecessors, (104), 25 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-02 13:56:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 592 transitions. [2023-12-02 13:56:02,956 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 592 transitions. Word has length 88 [2023-12-02 13:56:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:56:02,956 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 592 transitions. [2023-12-02 13:56:02,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2023-12-02 13:56:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 592 transitions. [2023-12-02 13:56:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 13:56:02,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:56:02,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:56:02,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:56:03,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:56:03,159 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:56:03,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:56:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1477087355, now seen corresponding path program 1 times [2023-12-02 13:56:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:56:03,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980066490] [2023-12-02 13:56:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:56:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:56:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:56:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:56:03,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:56:03,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980066490] [2023-12-02 13:56:03,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980066490] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:56:03,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850278083] [2023-12-02 13:56:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:56:03,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:56:03,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:56:03,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:56:03,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:56:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:56:03,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:56:03,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:56:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:56:03,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:56:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:56:03,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850278083] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:56:03,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [899017410] [2023-12-02 13:56:03,729 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2023-12-02 13:56:03,729 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:56:03,729 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:56:03,730 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:56:03,730 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:57:57,449 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:57:57,605 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 542 for LOIs [2023-12-02 13:57:59,239 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 551 for LOIs [2023-12-02 13:58:00,964 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 13:58:01,815 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 13:58:02,028 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:58:57,738 WARN L293 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 579 DAG size of output: 574 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:59:03,084 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 572 DAG size of output: 564 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:59:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [899017410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:59:50,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:59:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:59:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699370463] [2023-12-02 13:59:50,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:59:50,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:59:50,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:59:50,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:59:50,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:59:50,670 INFO L87 Difference]: Start difference. First operand 399 states and 592 transitions. Second operand has 33 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2023-12-02 14:00:16,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:00:16,460 INFO L93 Difference]: Finished difference Result 813 states and 1238 transitions. [2023-12-02 14:00:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 14:00:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 91 [2023-12-02 14:00:16,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:00:16,464 INFO L225 Difference]: With dead ends: 813 [2023-12-02 14:00:16,464 INFO L226 Difference]: Without dead ends: 491 [2023-12-02 14:00:16,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 111.8s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 14:00:16,466 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 90 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 3879 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:00:16,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3756 Invalid, 3889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3879 Invalid, 0 Unknown, 0 Unchecked, 22.2s Time] [2023-12-02 14:00:16,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-12-02 14:00:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 435. [2023-12-02 14:00:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 299 states have (on average 1.4280936454849498) internal successors, (427), 301 states have internal predecessors, (427), 107 states have call successors, (107), 28 states have call predecessors, (107), 28 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 14:00:16,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 640 transitions. [2023-12-02 14:00:16,649 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 640 transitions. Word has length 91 [2023-12-02 14:00:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:00:16,650 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 640 transitions. [2023-12-02 14:00:16,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2023-12-02 14:00:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 640 transitions. [2023-12-02 14:00:16,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 14:00:16,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:00:16,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:00:16,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 14:00:16,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:16,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:00:16,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:00:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1040036341, now seen corresponding path program 1 times [2023-12-02 14:00:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:00:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021556472] [2023-12-02 14:00:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:00:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 14:00:16,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:00:16,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021556472] [2023-12-02 14:00:16,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021556472] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:00:16,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941767158] [2023-12-02 14:00:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:00:16,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:00:16,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:00:16,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:00:16,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 14:00:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:00:17,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:00:17,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:00:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 14:00:17,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:00:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 14:00:17,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941767158] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:00:17,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1605840507] [2023-12-02 14:00:17,363 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2023-12-02 14:00:17,363 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:00:17,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:00:17,364 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:00:17,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:01:13,205 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 14:01:13,361 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 14:01:13,577 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:02:08,712 WARN L293 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 503 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:02:53,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1605840507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:02:53,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:02:53,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 14:02:53,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627600699] [2023-12-02 14:02:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:02:53,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 14:02:53,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:02:53,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 14:02:53,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 14:02:53,599 INFO L87 Difference]: Start difference. First operand 435 states and 640 transitions. Second operand has 32 states, 24 states have (on average 2.125) internal successors, (51), 23 states have internal predecessors, (51), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-02 14:03:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:03:10,258 INFO L93 Difference]: Finished difference Result 827 states and 1253 transitions. [2023-12-02 14:03:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 14:03:10,259 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.125) internal successors, (51), 23 states have internal predecessors, (51), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 90 [2023-12-02 14:03:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:03:10,262 INFO L225 Difference]: With dead ends: 827 [2023-12-02 14:03:10,262 INFO L226 Difference]: Without dead ends: 505 [2023-12-02 14:03:10,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 103.3s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 14:03:10,264 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3356 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:03:10,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 3356 Invalid, 2976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-12-02 14:03:10,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-02 14:03:10,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 455. [2023-12-02 14:03:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 319 states have (on average 1.432601880877743) internal successors, (457), 321 states have internal predecessors, (457), 107 states have call successors, (107), 28 states have call predecessors, (107), 28 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 14:03:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 670 transitions. [2023-12-02 14:03:10,443 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 670 transitions. Word has length 90 [2023-12-02 14:03:10,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:03:10,443 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 670 transitions. [2023-12-02 14:03:10,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.125) internal successors, (51), 23 states have internal predecessors, (51), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-02 14:03:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 670 transitions. [2023-12-02 14:03:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 14:03:10,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:03:10,445 INFO L195 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] [2023-12-02 14:03:10,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 14:03:10,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:03:10,647 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:03:10,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:03:10,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2087821075, now seen corresponding path program 1 times [2023-12-02 14:03:10,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:03:10,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303634565] [2023-12-02 14:03:10,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:03:10,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:03:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:03:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 14:03:10,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:03:10,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303634565] [2023-12-02 14:03:10,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303634565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:03:10,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:03:10,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 14:03:10,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860072988] [2023-12-02 14:03:10,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:03:10,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:03:10,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:03:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:03:10,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:03:10,853 INFO L87 Difference]: Start difference. First operand 455 states and 670 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 14:03:11,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:03:11,259 INFO L93 Difference]: Finished difference Result 546 states and 784 transitions. [2023-12-02 14:03:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:03:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 93 [2023-12-02 14:03:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:03:11,263 INFO L225 Difference]: With dead ends: 546 [2023-12-02 14:03:11,264 INFO L226 Difference]: Without dead ends: 455 [2023-12-02 14:03:11,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:03:11,265 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 79 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:03:11,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 953 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:03:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-02 14:03:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2023-12-02 14:03:11,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 319 states have (on average 1.4294670846394983) internal successors, (456), 321 states have internal predecessors, (456), 107 states have call successors, (107), 28 states have call predecessors, (107), 28 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 14:03:11,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 669 transitions. [2023-12-02 14:03:11,483 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 669 transitions. Word has length 93 [2023-12-02 14:03:11,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:03:11,483 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 669 transitions. [2023-12-02 14:03:11,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 14:03:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 669 transitions. [2023-12-02 14:03:11,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 14:03:11,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:03:11,485 INFO L195 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] [2023-12-02 14:03:11,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 14:03:11,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:03:11,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:03:11,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2048626839, now seen corresponding path program 1 times [2023-12-02 14:03:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:03:11,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090041294] [2023-12-02 14:03:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:03:11,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:03:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:03:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:03:11,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:03:11,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090041294] [2023-12-02 14:03:11,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090041294] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:03:11,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283779480] [2023-12-02 14:03:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:03:11,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:03:11,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:03:11,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:03:11,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ded7b3-e4ed-4b70-9539-0702e40052d8/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 14:03:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:03:11,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:03:11,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:03:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:03:11,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:03:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 14:03:12,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283779480] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:03:12,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206788985] [2023-12-02 14:03:12,011 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2023-12-02 14:03:12,012 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:03:12,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:03:12,012 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:03:12,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:04:09,638 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 14:04:09,802 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 247 for LOIs [2023-12-02 14:04:13,298 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2023-12-02 14:04:13,424 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 14:04:15,642 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2023-12-02 14:04:18,433 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2023-12-02 14:04:18,600 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 267 for LOIs [2023-12-02 14:04:30,062 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 254 for LOIs [2023-12-02 14:04:30,327 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 254 for LOIs [2023-12-02 14:04:30,551 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 270 for LOIs [2023-12-02 14:04:32,077 INFO L197 IcfgInterpreter]: Interpreting procedure isVerified with input of size 226 for LOIs [2023-12-02 14:04:32,257 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 254 for LOIs [2023-12-02 14:04:32,499 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:04:53,361 WARN L293 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:05:03,077 WARN L293 SmtUtils]: Spent 9.53s on a formula simplification. DAG size of input: 505 DAG size of output: 501 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)