./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product23.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_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/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_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/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_038af1b7-b113-4da1-9e10-ebb5dc8a2936/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 aa34593061e3e0a5eeea5cc3a3930a050ef50f60dff03c88799c643f69d7f641 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:30:58,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:30:58,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:30:58,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:30:58,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:30:58,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:30:58,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:30:58,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:30:58,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:30:58,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:30:58,443 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:30:58,443 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:30:58,444 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:30:58,444 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:30:58,445 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:30:58,445 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:30:58,446 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:30:58,446 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:30:58,447 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:30:58,447 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:30:58,448 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:30:58,449 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:30:58,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:30:58,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:30:58,451 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:30:58,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:30:58,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:30:58,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:30:58,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:30:58,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:30:58,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:30:58,453 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:30:58,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:30:58,454 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:30:58,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:30:58,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:30:58,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:30:58,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:30:58,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:30:58,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:30:58,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:30:58,456 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:30:58,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:30:58,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:30:58,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:30:58,457 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:30:58,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:30:58,457 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_038af1b7-b113-4da1-9e10-ebb5dc8a2936/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa34593061e3e0a5eeea5cc3a3930a050ef50f60dff03c88799c643f69d7f641 [2023-12-02 16:30:58,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:30:58,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:30:58,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:30:58,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:30:58,703 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:30:58,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec4_product23.cil.c [2023-12-02 16:31:01,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:31:01,671 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:31:01,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/sv-benchmarks/c/product-lines/email_spec4_product23.cil.c [2023-12-02 16:31:01,692 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/data/0d08c0cae/8b374b4fabe942988ad33e16a39b8fb7/FLAG23d834362 [2023-12-02 16:31:01,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/data/0d08c0cae/8b374b4fabe942988ad33e16a39b8fb7 [2023-12-02 16:31:01,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:31:01,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:31:01,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:31:01,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:31:01,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:31:01,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:31:01" (1/1) ... [2023-12-02 16:31:01,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5048476b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:01, skipping insertion in model container [2023-12-02 16:31:01,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:31:01" (1/1) ... [2023-12-02 16:31:01,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:31:02,225 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_038af1b7-b113-4da1-9e10-ebb5dc8a2936/sv-benchmarks/c/product-lines/email_spec4_product23.cil.c[63051,63064] [2023-12-02 16:31:02,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:31:02,243 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:31:02,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-12-02 16:31:02,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1128] [2023-12-02 16:31:02,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [1494] [2023-12-02 16:31:02,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1535] [2023-12-02 16:31:02,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1553] [2023-12-02 16:31:02,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1659] [2023-12-02 16:31:02,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1999] [2023-12-02 16:31:02,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2228] [2023-12-02 16:31:02,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2629] [2023-12-02 16:31:02,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2920] [2023-12-02 16:31:02,254 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2929] [2023-12-02 16:31:02,377 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_038af1b7-b113-4da1-9e10-ebb5dc8a2936/sv-benchmarks/c/product-lines/email_spec4_product23.cil.c[63051,63064] [2023-12-02 16:31:02,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:31:02,405 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:31:02,413 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:31:02,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02 WrapperNode [2023-12-02 16:31:02,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:31:02,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:31:02,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:31:02,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:31:02,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,502 INFO L138 Inliner]: procedures = 130, calls = 218, calls flagged for inlining = 59, calls inlined = 52, statements flattened = 996 [2023-12-02 16:31:02,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:31:02,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:31:02,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:31:02,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:31:02,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:31:02,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:31:02,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:31:02,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:31:02,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (1/1) ... [2023-12-02 16:31:02,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:31:02,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:31:02,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:31:02,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 16:31:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 16:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 16:31:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 16:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 16:31:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 16:31:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 16:31:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 16:31:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 16:31:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 16:31:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 16:31:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 16:31:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 16:31:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 16:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 16:31:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 16:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 16:31:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 16:31:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 16:31:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 16:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 16:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 16:31:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 16:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 16:31:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 16:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:31:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 16:31:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 16:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 16:31:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 16:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 16:31:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 16:31:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 16:31:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 16:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 16:31:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 16:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 16:31:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 16:31:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 16:31:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 16:31:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 16:31:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 16:31:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:31:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 16:31:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 16:31:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 16:31:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 16:31:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:31:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:31:02,842 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:31:02,844 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:31:03,573 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:31:04,029 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:31:04,029 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:31:04,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:31:04 BoogieIcfgContainer [2023-12-02 16:31:04,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:31:04,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:31:04,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:31:04,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:31:04,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:31:01" (1/3) ... [2023-12-02 16:31:04,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e74cd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:31:04, skipping insertion in model container [2023-12-02 16:31:04,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:31:02" (2/3) ... [2023-12-02 16:31:04,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e74cd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:31:04, skipping insertion in model container [2023-12-02 16:31:04,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:31:04" (3/3) ... [2023-12-02 16:31:04,039 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product23.cil.c [2023-12-02 16:31:04,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:31:04,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:31:04,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:31:04,110 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;@16e73c89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:31:04,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:31:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 103 states have (on average 1.3300970873786409) internal successors, (137), 106 states have internal predecessors, (137), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 16:31:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 16:31:04,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:04,128 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] [2023-12-02 16:31:04,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:31:04,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1094672525, now seen corresponding path program 1 times [2023-12-02 16:31:04,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:04,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405913832] [2023-12-02 16:31:04,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:04,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:31:04,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:04,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405913832] [2023-12-02 16:31:04,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405913832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:04,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:04,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:31:04,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96191135] [2023-12-02 16:31:04,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:04,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:31:04,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:04,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:31:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:31:04,472 INFO L87 Difference]: Start difference. First operand has 179 states, 103 states have (on average 1.3300970873786409) internal successors, (137), 106 states have internal predecessors, (137), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 16:31:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:04,596 INFO L93 Difference]: Finished difference Result 266 states and 353 transitions. [2023-12-02 16:31:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:31:04,599 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2023-12-02 16:31:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:04,609 INFO L225 Difference]: With dead ends: 266 [2023-12-02 16:31:04,610 INFO L226 Difference]: Without dead ends: 176 [2023-12-02 16:31:04,614 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 16:31:04,618 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:04,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:31:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-02 16:31:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-12-02 16:31:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 101 states have (on average 1.297029702970297) internal successors, (131), 103 states have internal predecessors, (131), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-02 16:31:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 234 transitions. [2023-12-02 16:31:04,672 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 234 transitions. Word has length 65 [2023-12-02 16:31:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:04,674 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 234 transitions. [2023-12-02 16:31:04,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 16:31:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 234 transitions. [2023-12-02 16:31:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 16:31:04,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:04,679 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] [2023-12-02 16:31:04,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:31:04,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:31:04,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1745956062, now seen corresponding path program 1 times [2023-12-02 16:31:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:04,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331671038] [2023-12-02 16:31:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:31:04,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:04,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331671038] [2023-12-02 16:31:04,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331671038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:04,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:04,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:31:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485403230] [2023-12-02 16:31:04,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:04,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:31:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:04,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:31:04,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:31:04,891 INFO L87 Difference]: Start difference. First operand 176 states and 234 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 16:31:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:05,004 INFO L93 Difference]: Finished difference Result 262 states and 338 transitions. [2023-12-02 16:31:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:31:05,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2023-12-02 16:31:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:05,008 INFO L225 Difference]: With dead ends: 262 [2023-12-02 16:31:05,008 INFO L226 Difference]: Without dead ends: 178 [2023-12-02 16:31:05,010 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 16:31:05,011 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:05,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:31:05,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-02 16:31:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2023-12-02 16:31:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 105 states have internal predecessors, (133), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-02 16:31:05,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 236 transitions. [2023-12-02 16:31:05,036 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 236 transitions. Word has length 66 [2023-12-02 16:31:05,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:05,036 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 236 transitions. [2023-12-02 16:31:05,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 16:31:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 236 transitions. [2023-12-02 16:31:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 16:31:05,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:05,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:31:05,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:31:05,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:31:05,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:05,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2008812586, now seen corresponding path program 1 times [2023-12-02 16:31:05,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:05,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778554684] [2023-12-02 16:31:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:05,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:31:05,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:05,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778554684] [2023-12-02 16:31:05,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778554684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:05,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:31:05,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462209695] [2023-12-02 16:31:05,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:05,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:31:05,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:05,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:31:05,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:31:05,167 INFO L87 Difference]: Start difference. First operand 178 states and 236 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 16:31:05,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:05,281 INFO L93 Difference]: Finished difference Result 391 states and 539 transitions. [2023-12-02 16:31:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:31:05,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2023-12-02 16:31:05,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:05,286 INFO L225 Difference]: With dead ends: 391 [2023-12-02 16:31:05,286 INFO L226 Difference]: Without dead ends: 231 [2023-12-02 16:31:05,287 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 16:31:05,289 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 59 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:05,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 403 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:31:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-02 16:31:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 226. [2023-12-02 16:31:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 137 states have (on average 1.3722627737226278) internal successors, (188), 139 states have internal predecessors, (188), 66 states have call successors, (66), 22 states have call predecessors, (66), 22 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 16:31:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 319 transitions. [2023-12-02 16:31:05,314 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 319 transitions. Word has length 71 [2023-12-02 16:31:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:05,315 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 319 transitions. [2023-12-02 16:31:05,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 16:31:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 319 transitions. [2023-12-02 16:31:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 16:31:05,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:05,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:31:05,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:31:05,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:31:05,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash -404019683, now seen corresponding path program 1 times [2023-12-02 16:31:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:05,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032470848] [2023-12-02 16:31:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:05,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:31:05,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:05,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032470848] [2023-12-02 16:31:05,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032470848] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:31:05,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009679982] [2023-12-02 16:31:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:05,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:31:05,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:31:05,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:31:05,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:31:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:05,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:31:05,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:31:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:31:05,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:31:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:31:06,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009679982] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:31:06,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1852166784] [2023-12-02 16:31:06,048 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 16:31:06,048 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:31:06,052 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:31:06,058 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:31:06,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:31:46,987 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 16:31:47,273 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 16:31:47,489 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:32:43,509 WARN L293 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 495 DAG size of output: 495 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:58,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1852166784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:32:58,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:32:58,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 16:32:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228499761] [2023-12-02 16:32:58,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:32:58,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 16:32:58,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:32:58,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 16:32:58,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:32:58,290 INFO L87 Difference]: Start difference. First operand 226 states and 319 transitions. Second operand has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 16:33:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:33:18,489 INFO L93 Difference]: Finished difference Result 499 states and 738 transitions. [2023-12-02 16:33:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 16:33:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 72 [2023-12-02 16:33:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:33:18,493 INFO L225 Difference]: With dead ends: 499 [2023-12-02 16:33:18,494 INFO L226 Difference]: Without dead ends: 291 [2023-12-02 16:33:18,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 77.6s TimeCoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2023-12-02 16:33:18,496 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 58 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:33:18,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2993 Invalid, 2904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2023-12-02 16:33:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-12-02 16:33:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 249. [2023-12-02 16:33:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 159 states have (on average 1.389937106918239) internal successors, (221), 161 states have internal predecessors, (221), 66 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 16:33:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 352 transitions. [2023-12-02 16:33:18,600 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 352 transitions. Word has length 72 [2023-12-02 16:33:18,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:33:18,600 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 352 transitions. [2023-12-02 16:33:18,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 16:33:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 352 transitions. [2023-12-02 16:33:18,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 16:33:18,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:33:18,603 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:33:18,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:33:18,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:33:18,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:33:18,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:33:18,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1545023454, now seen corresponding path program 1 times [2023-12-02 16:33:18,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:33:18,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228813432] [2023-12-02 16:33:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:33:18,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:33:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:33:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:33:18,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:33:18,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228813432] [2023-12-02 16:33:18,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228813432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:33:18,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:33:18,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:33:18,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031379009] [2023-12-02 16:33:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:33:18,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:33:18,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:33:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:33:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:33:18,897 INFO L87 Difference]: Start difference. First operand 249 states and 352 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 16:33:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:33:19,112 INFO L93 Difference]: Finished difference Result 601 states and 884 transitions. [2023-12-02 16:33:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:33:19,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 16:33:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:33:19,116 INFO L225 Difference]: With dead ends: 601 [2023-12-02 16:33:19,116 INFO L226 Difference]: Without dead ends: 376 [2023-12-02 16:33:19,117 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 16:33:19,118 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 57 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:33:19,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 405 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:33:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-12-02 16:33:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 371. [2023-12-02 16:33:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 250 states have (on average 1.444) internal successors, (361), 252 states have internal predecessors, (361), 97 states have call successors, (97), 23 states have call predecessors, (97), 23 states have return successors, (96), 95 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-02 16:33:19,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 554 transitions. [2023-12-02 16:33:19,220 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 554 transitions. Word has length 77 [2023-12-02 16:33:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:33:19,220 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 554 transitions. [2023-12-02 16:33:19,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 16:33:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 554 transitions. [2023-12-02 16:33:19,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 16:33:19,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:33:19,224 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:33:19,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:33:19,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:33:19,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:33:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash 258964972, now seen corresponding path program 1 times [2023-12-02 16:33:19,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:33:19,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211785216] [2023-12-02 16:33:19,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:33:19,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:33:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:33:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:33:19,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:33:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211785216] [2023-12-02 16:33:19,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211785216] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:33:19,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419945187] [2023-12-02 16:33:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:33:19,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:33:19,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:33:19,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:33:19,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:33:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:33:19,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:33:19,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:33:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:33:19,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:33:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:33:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419945187] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:33:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1660957988] [2023-12-02 16:33:19,775 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 16:33:19,775 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:33:19,776 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:33:19,776 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:33:19,776 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:34:17,476 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 16:34:17,691 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 16:34:19,790 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:34:41,308 WARN L293 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 475 DAG size of output: 475 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:34:50,816 WARN L293 SmtUtils]: Spent 9.28s 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 16:35:29,435 WARN L293 SmtUtils]: Spent 9.03s 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 16:35:58,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1660957988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:35:58,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:35:58,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 16:35:58,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821914628] [2023-12-02 16:35:58,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:35:58,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 16:35:58,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:35:58,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 16:35:58,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:35:58,018 INFO L87 Difference]: Start difference. First operand 371 states and 554 transitions. Second operand has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 16:36:14,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:36:14,241 INFO L93 Difference]: Finished difference Result 760 states and 1165 transitions. [2023-12-02 16:36:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 16:36:14,242 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 78 [2023-12-02 16:36:14,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:36:14,245 INFO L225 Difference]: With dead ends: 760 [2023-12-02 16:36:14,245 INFO L226 Difference]: Without dead ends: 452 [2023-12-02 16:36:14,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 101.4s TimeCoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 16:36:14,247 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 226 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 2663 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:36:14,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 2755 Invalid, 2672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2663 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2023-12-02 16:36:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-12-02 16:36:14,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 385. [2023-12-02 16:36:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 262 states have (on average 1.4427480916030535) internal successors, (378), 264 states have internal predecessors, (378), 98 states have call successors, (98), 24 states have call predecessors, (98), 24 states have return successors, (97), 96 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-02 16:36:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 573 transitions. [2023-12-02 16:36:14,373 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 573 transitions. Word has length 78 [2023-12-02 16:36:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:36:14,373 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 573 transitions. [2023-12-02 16:36:14,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 16:36:14,374 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 573 transitions. [2023-12-02 16:36:14,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 16:36:14,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:14,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:14,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:36:14,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 16:36:14,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:14,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:14,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1579998680, now seen corresponding path program 1 times [2023-12-02 16:36:14,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:36:14,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165588199] [2023-12-02 16:36:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:36:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:14,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:36:14,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:36:14,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165588199] [2023-12-02 16:36:14,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165588199] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:36:14,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352018614] [2023-12-02 16:36:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:14,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:36:14,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:36:14,749 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:36:14,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:36:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:15,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:36:15,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:36:15,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:36:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:36:15,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352018614] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:36:15,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2126155500] [2023-12-02 16:36:15,137 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 16:36:15,137 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:36:15,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:36:15,138 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:36:15,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:37:41,456 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 16:37:41,667 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 534 for LOIs [2023-12-02 16:37:43,440 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 543 for LOIs [2023-12-02 16:37:45,187 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 16:37:45,966 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 16:37:46,181 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:38:44,774 WARN L293 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 571 DAG size of output: 566 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:38:56,155 WARN L293 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 571 DAG size of output: 566 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:39:44,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2126155500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:39:44,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:39:44,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 16:39:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383659304] [2023-12-02 16:39:44,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:39:44,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 16:39:44,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:39:44,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 16:39:44,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:39:44,521 INFO L87 Difference]: Start difference. First operand 385 states and 573 transitions. Second operand has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 16:40:12,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:40:12,982 INFO L93 Difference]: Finished difference Result 785 states and 1200 transitions. [2023-12-02 16:40:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 16:40:12,983 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 81 [2023-12-02 16:40:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:40:12,987 INFO L225 Difference]: With dead ends: 785 [2023-12-02 16:40:12,987 INFO L226 Difference]: Without dead ends: 477 [2023-12-02 16:40:12,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 124.8s TimeCoverageRelationStatistics Valid=124, Invalid=1436, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 16:40:12,989 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 90 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 3615 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 3626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:40:12,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 3142 Invalid, 3626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3615 Invalid, 0 Unknown, 0 Unchecked, 21.6s Time] [2023-12-02 16:40:12,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-12-02 16:40:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 421. [2023-12-02 16:40:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 292 states have (on average 1.4383561643835616) internal successors, (420), 294 states have internal predecessors, (420), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 16:40:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 621 transitions. [2023-12-02 16:40:13,169 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 621 transitions. Word has length 81 [2023-12-02 16:40:13,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:40:13,169 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 621 transitions. [2023-12-02 16:40:13,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 16:40:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 621 transitions. [2023-12-02 16:40:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 16:40:13,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:13,171 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:40:13,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:40:13,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 16:40:13,372 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:13,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:13,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1807287407, now seen corresponding path program 1 times [2023-12-02 16:40:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:40:13,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13546149] [2023-12-02 16:40:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:13,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:40:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:40:13,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:40:13,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13546149] [2023-12-02 16:40:13,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13546149] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:40:13,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716919895] [2023-12-02 16:40:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:13,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:40:13,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:40:13,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:40:13,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:40:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:13,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:40:13,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:40:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:40:13,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:40:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 16:40:13,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716919895] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:40:13,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1526499750] [2023-12-02 16:40:13,875 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 16:40:13,876 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:40:13,876 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:40:13,876 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:40:13,877 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:41:09,589 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 16:41:09,802 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 16:41:10,015 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:42:07,560 WARN L293 SmtUtils]: Spent 10.02s on a formula simplification. DAG size of input: 502 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:42:51,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1526499750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:51,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:42:51,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 16:42:51,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568228434] [2023-12-02 16:42:51,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:51,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 16:42:51,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:42:51,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 16:42:51,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:42:51,899 INFO L87 Difference]: Start difference. First operand 421 states and 621 transitions. Second operand has 32 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 16:43:12,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:43:12,065 INFO L93 Difference]: Finished difference Result 799 states and 1215 transitions. [2023-12-02 16:43:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 16:43:12,066 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 80 [2023-12-02 16:43:12,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:43:12,070 INFO L225 Difference]: With dead ends: 799 [2023-12-02 16:43:12,070 INFO L226 Difference]: Without dead ends: 491 [2023-12-02 16:43:12,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 108.3s TimeCoverageRelationStatistics Valid=163, Invalid=1319, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 16:43:12,072 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 225 mSDsluCounter, 2712 mSDsCounter, 0 mSdLazyCounter, 2971 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:43:12,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 2892 Invalid, 2981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2971 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 16:43:12,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-12-02 16:43:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 441. [2023-12-02 16:43:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 312 states have (on average 1.4423076923076923) internal successors, (450), 314 states have internal predecessors, (450), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 16:43:12,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 651 transitions. [2023-12-02 16:43:12,285 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 651 transitions. Word has length 80 [2023-12-02 16:43:12,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:43:12,286 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 651 transitions. [2023-12-02 16:43:12,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 16:43:12,286 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 651 transitions. [2023-12-02 16:43:12,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 16:43:12,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:43:12,288 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:43:12,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:43:12,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:43:12,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:43:12,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:43:12,489 INFO L85 PathProgramCache]: Analyzing trace with hash 814899783, now seen corresponding path program 1 times [2023-12-02 16:43:12,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:43:12,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628211258] [2023-12-02 16:43:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:43:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:43:12,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:43:12,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628211258] [2023-12-02 16:43:12,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628211258] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:43:12,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452108417] [2023-12-02 16:43:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:43:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:43:12,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:43:12,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_038af1b7-b113-4da1-9e10-ebb5dc8a2936/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:43:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:12,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:43:12,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:43:12,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:43:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:43:13,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452108417] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:43:13,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1518239463] [2023-12-02 16:43:13,022 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 16:43:13,022 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:43:13,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:43:13,022 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:43:13,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:44:07,655 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 16:44:07,869 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 248 for LOIs [2023-12-02 16:44:08,100 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2023-12-02 16:44:11,681 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 224 for LOIs [2023-12-02 16:44:11,807 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 246 for LOIs [2023-12-02 16:44:15,402 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 256 for LOIs [2023-12-02 16:44:21,865 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 242 for LOIs [2023-12-02 16:44:22,690 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 228 for LOIs [2023-12-02 16:44:22,832 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 256 for LOIs [2023-12-02 16:44:23,056 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 229 for LOIs [2023-12-02 16:44:23,193 INFO L180 IcfgInterpreter]: Interpretation finished