./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/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_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/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_2fb73256-9fb3-4d22-9859-8335330a97a2/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 ac03fde86830071a4c6b2e5721972db0abe9813dd0e80632e775695a294f996c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:35:08,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:35:08,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:35:08,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:35:08,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:35:08,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:35:08,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:35:08,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:35:08,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:35:08,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:35:08,779 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:35:08,780 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:35:08,780 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:35:08,781 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:35:08,781 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:35:08,782 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:35:08,782 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:35:08,783 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:35:08,783 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:35:08,784 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:35:08,785 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:35:08,785 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:35:08,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:35:08,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:35:08,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:35:08,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:35:08,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:35:08,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:35:08,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:35:08,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:35:08,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:35:08,790 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:35:08,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:35:08,790 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:35:08,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:35:08,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:35:08,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:35:08,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:35:08,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:35:08,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:35:08,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:35:08,792 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:35:08,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:35:08,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:35:08,792 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:35:08,793 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:35:08,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:35:08,793 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_2fb73256-9fb3-4d22-9859-8335330a97a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac03fde86830071a4c6b2e5721972db0abe9813dd0e80632e775695a294f996c [2023-12-02 15:35:08,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:35:09,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:35:09,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:35:09,019 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:35:09,020 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:35:09,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec7_product27.cil.c [2023-12-02 15:35:11,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:35:12,006 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:35:12,007 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c [2023-12-02 15:35:12,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/data/b36c1ab86/f071c2fbbaf14d70be7c612cca9d4b02/FLAGecd5fd82b [2023-12-02 15:35:12,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/data/b36c1ab86/f071c2fbbaf14d70be7c612cca9d4b02 [2023-12-02 15:35:12,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:35:12,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:35:12,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:35:12,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:35:12,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:35:12,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4812ed4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12, skipping insertion in model container [2023-12-02 15:35:12,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:35:12,389 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_2fb73256-9fb3-4d22-9859-8335330a97a2/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c[14691,14704] [2023-12-02 15:35:12,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:35:12,589 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:35:12,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-02 15:35:12,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [281] [2023-12-02 15:35:12,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [685] [2023-12-02 15:35:12,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [702] [2023-12-02 15:35:12,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [711] [2023-12-02 15:35:12,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1114] [2023-12-02 15:35:12,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1426] [2023-12-02 15:35:12,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1461] [2023-12-02 15:35:12,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2521] [2023-12-02 15:35:12,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2887] [2023-12-02 15:35:12,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2905] [2023-12-02 15:35:12,632 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_2fb73256-9fb3-4d22-9859-8335330a97a2/sv-benchmarks/c/product-lines/email_spec7_product27.cil.c[14691,14704] [2023-12-02 15:35:12,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:35:12,747 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:35:12,753 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:35:12,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12 WrapperNode [2023-12-02 15:35:12,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:35:12,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:35:12,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:35:12,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:35:12,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,835 INFO L138 Inliner]: procedures = 133, calls = 225, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1147 [2023-12-02 15:35:12,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:35:12,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:35:12,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:35:12,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:35:12,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:35:12,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:35:12,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:35:12,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:35:12,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (1/1) ... [2023-12-02 15:35:12,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:35:12,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:35:12,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:35:12,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:35:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 15:35:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 15:35:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 15:35:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 15:35:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 15:35:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 15:35:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 15:35:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 15:35:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 15:35:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 15:35:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 15:35:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 15:35:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 15:35:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 15:35:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 15:35:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 15:35:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 15:35:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 15:35:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 15:35:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 15:35:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 15:35:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 15:35:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 15:35:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 15:35:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 15:35:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:35:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 15:35:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 15:35:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 15:35:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 15:35:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 15:35:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 15:35:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 15:35:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 15:35:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 15:35:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 15:35:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 15:35:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 15:35:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 15:35:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 15:35:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 15:35:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 15:35:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:35:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 15:35:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 15:35:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 15:35:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 15:35:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:35:13,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:35:13,234 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:35:13,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:35:14,016 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:35:14,629 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:35:14,629 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:35:14,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:35:14 BoogieIcfgContainer [2023-12-02 15:35:14,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:35:14,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:35:14,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:35:14,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:35:14,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:35:12" (1/3) ... [2023-12-02 15:35:14,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c18248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:35:14, skipping insertion in model container [2023-12-02 15:35:14,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:12" (2/3) ... [2023-12-02 15:35:14,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c18248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:35:14, skipping insertion in model container [2023-12-02 15:35:14,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:35:14" (3/3) ... [2023-12-02 15:35:14,639 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product27.cil.c [2023-12-02 15:35:14,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:35:14,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:35:14,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:35:14,721 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;@2861b607, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:35:14,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:35:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-02 15:35:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 15:35:14,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:35:14,742 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:35:14,743 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:35:14,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:35:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1656419311, now seen corresponding path program 1 times [2023-12-02 15:35:14,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:35:14,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86777705] [2023-12-02 15:35:14,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:35:14,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:35:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:35:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:35:15,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:35:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86777705] [2023-12-02 15:35:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86777705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:35:15,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:35:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:35:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269349802] [2023-12-02 15:35:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:35:15,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:35:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:35:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:35:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:35:15,166 INFO L87 Difference]: Start difference. First operand has 191 states, 109 states have (on average 1.311926605504587) internal successors, (143), 112 states have internal predecessors, (143), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:35:15,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:35:15,313 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2023-12-02 15:35:15,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:35:15,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 60 [2023-12-02 15:35:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:35:15,330 INFO L225 Difference]: With dead ends: 290 [2023-12-02 15:35:15,330 INFO L226 Difference]: Without dead ends: 188 [2023-12-02 15:35:15,335 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 15:35:15,339 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:35:15,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:35:15,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-02 15:35:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-02 15:35:15,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-02 15:35:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 252 transitions. [2023-12-02 15:35:15,404 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 252 transitions. Word has length 60 [2023-12-02 15:35:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:35:15,406 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 252 transitions. [2023-12-02 15:35:15,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:35:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 252 transitions. [2023-12-02 15:35:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 15:35:15,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:35:15,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:35:15,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:35:15,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:35:15,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:35:15,413 INFO L85 PathProgramCache]: Analyzing trace with hash 767049003, now seen corresponding path program 1 times [2023-12-02 15:35:15,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:35:15,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896852006] [2023-12-02 15:35:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:35:15,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:35:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:35:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:35:15,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:35:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896852006] [2023-12-02 15:35:15,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896852006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:35:15,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:35:15,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:35:15,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265963432] [2023-12-02 15:35:15,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:35:15,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:35:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:35:15,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:35:15,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:35:15,620 INFO L87 Difference]: Start difference. First operand 188 states and 252 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:35:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:35:15,745 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2023-12-02 15:35:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:35:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2023-12-02 15:35:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:35:15,749 INFO L225 Difference]: With dead ends: 286 [2023-12-02 15:35:15,749 INFO L226 Difference]: Without dead ends: 190 [2023-12-02 15:35:15,751 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 15:35:15,752 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:35:15,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:35:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-12-02 15:35:15,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-12-02 15:35:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-02 15:35:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 254 transitions. [2023-12-02 15:35:15,775 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 254 transitions. Word has length 61 [2023-12-02 15:35:15,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:35:15,775 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 254 transitions. [2023-12-02 15:35:15,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:35:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 254 transitions. [2023-12-02 15:35:15,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 15:35:15,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:35:15,778 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 15:35:15,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:35:15,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:35:15,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:35:15,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2039540820, now seen corresponding path program 1 times [2023-12-02 15:35:15,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:35:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611438444] [2023-12-02 15:35:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:35:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:35:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:35:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:35:15,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:35:15,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611438444] [2023-12-02 15:35:15,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611438444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:35:15,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:35:15,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:35:15,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199620990] [2023-12-02 15:35:15,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:35:15,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:35:15,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:35:15,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:35:15,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:35:15,917 INFO L87 Difference]: Start difference. First operand 190 states and 254 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:35:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:35:16,046 INFO L93 Difference]: Finished difference Result 415 states and 575 transitions. [2023-12-02 15:35:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:35:16,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2023-12-02 15:35:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:35:16,050 INFO L225 Difference]: With dead ends: 415 [2023-12-02 15:35:16,050 INFO L226 Difference]: Without dead ends: 243 [2023-12-02 15:35:16,051 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 15:35:16,053 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:35:16,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 436 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:35:16,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-02 15:35:16,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2023-12-02 15:35:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 145 states have internal predecessors, (194), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 15:35:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 337 transitions. [2023-12-02 15:35:16,082 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 337 transitions. Word has length 66 [2023-12-02 15:35:16,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:35:16,082 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 337 transitions. [2023-12-02 15:35:16,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:35:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 337 transitions. [2023-12-02 15:35:16,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 15:35:16,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:35:16,086 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:35:16,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:35:16,086 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:35:16,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:35:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash 176650156, now seen corresponding path program 1 times [2023-12-02 15:35:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:35:16,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512987818] [2023-12-02 15:35:16,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:35:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:35:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:35:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:35:16,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:35:16,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512987818] [2023-12-02 15:35:16,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512987818] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:35:16,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765672656] [2023-12-02 15:35:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:35:16,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:35:16,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:35:16,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:35:16,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:35:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:35:16,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:35:16,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:35:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:35:16,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:35:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:35:16,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765672656] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:35:16,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [447386652] [2023-12-02 15:35:16,842 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2023-12-02 15:35:16,842 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:35:16,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:35:16,852 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:35:16,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:35:57,072 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 15:35:57,234 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 15:35:57,399 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:37:00,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [447386652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:00,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:37:00,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 15:37:00,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616951202] [2023-12-02 15:37:00,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:00,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:37:00,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:00,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:37:00,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 15:37:00,341 INFO L87 Difference]: Start difference. First operand 238 states and 337 transitions. Second operand has 24 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 15:37:09,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:09,875 INFO L93 Difference]: Finished difference Result 523 states and 774 transitions. [2023-12-02 15:37:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 15:37:09,876 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 67 [2023-12-02 15:37:09,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:09,878 INFO L225 Difference]: With dead ends: 523 [2023-12-02 15:37:09,878 INFO L226 Difference]: Without dead ends: 303 [2023-12-02 15:37:09,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 62.9s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 15:37:09,881 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 58 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:09,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3276 Invalid, 2398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-02 15:37:09,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-02 15:37:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 261. [2023-12-02 15:37:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 167 states have internal predecessors, (227), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 15:37:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 370 transitions. [2023-12-02 15:37:09,960 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 370 transitions. Word has length 67 [2023-12-02 15:37:09,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:09,960 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 370 transitions. [2023-12-02 15:37:09,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 15:37:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 370 transitions. [2023-12-02 15:37:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 15:37:09,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:09,963 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:37:09,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:37:10,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:37:10,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:37:10,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash -745444295, now seen corresponding path program 1 times [2023-12-02 15:37:10,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476592405] [2023-12-02 15:37:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:10,248 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:37:10,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:10,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476592405] [2023-12-02 15:37:10,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476592405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:10,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:10,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:37:10,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747603873] [2023-12-02 15:37:10,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:10,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:10,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:10,251 INFO L87 Difference]: Start difference. First operand 261 states and 370 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 15:37:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:10,462 INFO L93 Difference]: Finished difference Result 625 states and 920 transitions. [2023-12-02 15:37:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 72 [2023-12-02 15:37:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:10,466 INFO L225 Difference]: With dead ends: 625 [2023-12-02 15:37:10,466 INFO L226 Difference]: Without dead ends: 388 [2023-12-02 15:37:10,468 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 15:37:10,469 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 57 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:10,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 439 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:10,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-02 15:37:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2023-12-02 15:37:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 256 states have (on average 1.43359375) internal successors, (367), 258 states have internal predecessors, (367), 103 states have call successors, (103), 23 states have call predecessors, (103), 23 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-02 15:37:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 572 transitions. [2023-12-02 15:37:10,606 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 572 transitions. Word has length 72 [2023-12-02 15:37:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:10,606 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 572 transitions. [2023-12-02 15:37:10,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 15:37:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 572 transitions. [2023-12-02 15:37:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 15:37:10,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:10,609 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:37:10,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:37:10,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:37:10,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash 34739606, now seen corresponding path program 1 times [2023-12-02 15:37:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:10,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495030948] [2023-12-02 15:37:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:37:10,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:10,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495030948] [2023-12-02 15:37:10,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495030948] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:37:10,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651685071] [2023-12-02 15:37:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:10,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:37:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:37:10,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:37:10,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:37:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:11,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:37:11,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:37:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:37:11,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:37:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:37:11,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651685071] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:37:11,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028080852] [2023-12-02 15:37:11,125 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 15:37:11,126 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:37:11,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:37:11,126 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:37:11,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:38:14,039 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 15:38:14,200 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 15:38:16,276 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:38:37,181 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:38:46,264 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 505 DAG size of output: 501 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:39:25,348 WARN L293 SmtUtils]: Spent 9.21s 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 15:39:34,970 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 503 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:39:45,497 WARN L293 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 509 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:39:55,771 WARN L293 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 507 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:06,023 WARN L293 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 511 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:16,363 WARN L293 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 509 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:27,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1028080852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:40:27,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:40:27,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 15:40:27,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881076872] [2023-12-02 15:40:27,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:40:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 15:40:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:40:27,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 15:40:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 15:40:27,877 INFO L87 Difference]: Start difference. First operand 383 states and 572 transitions. Second operand has 28 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 15:40:43,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:40:43,223 INFO L93 Difference]: Finished difference Result 784 states and 1201 transitions. [2023-12-02 15:40:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 15:40:43,224 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 73 [2023-12-02 15:40:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:40:43,227 INFO L225 Difference]: With dead ends: 784 [2023-12-02 15:40:43,227 INFO L226 Difference]: Without dead ends: 464 [2023-12-02 15:40:43,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 131.6s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 15:40:43,229 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 76 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:40:43,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 3368 Invalid, 2761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 15:40:43,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-02 15:40:43,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 397. [2023-12-02 15:40:43,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 268 states have (on average 1.4328358208955223) internal successors, (384), 270 states have internal predecessors, (384), 104 states have call successors, (104), 24 states have call predecessors, (104), 24 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-02 15:40:43,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 591 transitions. [2023-12-02 15:40:43,342 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 591 transitions. Word has length 73 [2023-12-02 15:40:43,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:40:43,342 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 591 transitions. [2023-12-02 15:40:43,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 15:40:43,343 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 591 transitions. [2023-12-02 15:40:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 15:40:43,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:40:43,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:40:43,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:40:43,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 15:40:43,548 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:40:43,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:40:43,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1249542177, now seen corresponding path program 1 times [2023-12-02 15:40:43,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:40:43,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658819750] [2023-12-02 15:40:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:43,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:40:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:40:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:40:43,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:40:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658819750] [2023-12-02 15:40:43,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658819750] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:40:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853481199] [2023-12-02 15:40:43,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:43,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:40:43,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:40:43,729 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:40:43,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:40:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:40:44,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:40:44,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:40:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:40:44,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:40:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:40:44,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853481199] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:40:44,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1895337877] [2023-12-02 15:40:44,169 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2023-12-02 15:40:44,169 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:40:44,170 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:40:44,170 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:40:44,170 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:42:19,574 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 15:42:19,732 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 542 for LOIs [2023-12-02 15:42:21,709 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 551 for LOIs [2023-12-02 15:42:23,463 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 15:42:24,181 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 15:42:24,341 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:43:22,303 WARN L293 SmtUtils]: Spent 11.08s on a formula simplification. DAG size of input: 583 DAG size of output: 578 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:43:33,975 WARN L293 SmtUtils]: Spent 11.29s on a formula simplification. DAG size of input: 584 DAG size of output: 578 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:44:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1895337877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:44:23,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:44:23,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 15:44:23,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256250344] [2023-12-02 15:44:23,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:44:23,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 15:44:23,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:44:23,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 15:44:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 15:44:23,106 INFO L87 Difference]: Start difference. First operand 397 states and 591 transitions. Second operand has 33 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 15:44:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:44:46,093 INFO L93 Difference]: Finished difference Result 809 states and 1236 transitions. [2023-12-02 15:44:46,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 15:44:46,093 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 76 [2023-12-02 15:44:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:44:46,097 INFO L225 Difference]: With dead ends: 809 [2023-12-02 15:44:46,097 INFO L226 Difference]: Without dead ends: 489 [2023-12-02 15:44:46,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 118.7s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 15:44:46,100 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 60 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 3461 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:44:46,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3370 Invalid, 3470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3461 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2023-12-02 15:44:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-02 15:44:46,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 433. [2023-12-02 15:44:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 298 states have (on average 1.429530201342282) internal successors, (426), 300 states have internal predecessors, (426), 107 states have call successors, (107), 27 states have call predecessors, (107), 27 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 15:44:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 639 transitions. [2023-12-02 15:44:46,284 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 639 transitions. Word has length 76 [2023-12-02 15:44:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:44:46,284 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 639 transitions. [2023-12-02 15:44:46,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 15:44:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 639 transitions. [2023-12-02 15:44:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 15:44:46,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:44:46,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:44:46,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:44:46,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:44:46,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:44:46,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:44:46,489 INFO L85 PathProgramCache]: Analyzing trace with hash -215435914, now seen corresponding path program 1 times [2023-12-02 15:44:46,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:44:46,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821459759] [2023-12-02 15:44:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:46,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:44:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:44:46,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:44:46,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821459759] [2023-12-02 15:44:46,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821459759] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:44:46,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955879713] [2023-12-02 15:44:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:46,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:44:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:44:46,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:44:46,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:44:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:46,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:44:46,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:44:46,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:44:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 15:44:46,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955879713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:44:46,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [786295090] [2023-12-02 15:44:47,001 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-12-02 15:44:47,001 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:44:47,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:44:47,002 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:44:47,002 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:45:57,619 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 15:45:57,777 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 15:45:57,941 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:46:55,118 WARN L293 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 507 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:04,788 WARN L293 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 508 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:14,923 WARN L293 SmtUtils]: Spent 9.75s on a formula simplification. DAG size of input: 514 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:25,292 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 512 DAG size of output: 511 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:35,372 WARN L293 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 516 DAG size of output: 515 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:45,988 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 514 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:48:12,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [786295090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:48:12,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:48:12,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 15:48:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399784209] [2023-12-02 15:48:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:48:12,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 15:48:12,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:48:12,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 15:48:12,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 15:48:12,843 INFO L87 Difference]: Start difference. First operand 433 states and 639 transitions. Second operand has 32 states, 24 states have (on average 1.75) internal successors, (42), 23 states have internal predecessors, (42), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 15:48:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:48:26,651 INFO L93 Difference]: Finished difference Result 823 states and 1251 transitions. [2023-12-02 15:48:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 15:48:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.75) internal successors, (42), 23 states have internal predecessors, (42), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 75 [2023-12-02 15:48:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:48:26,654 INFO L225 Difference]: With dead ends: 823 [2023-12-02 15:48:26,654 INFO L226 Difference]: Without dead ends: 503 [2023-12-02 15:48:26,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 134.9s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 15:48:26,656 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 140 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:48:26,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3581 Invalid, 2909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2901 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-12-02 15:48:26,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-02 15:48:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 453. [2023-12-02 15:48:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 318 states have (on average 1.4339622641509433) internal successors, (456), 320 states have internal predecessors, (456), 107 states have call successors, (107), 27 states have call predecessors, (107), 27 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-02 15:48:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 669 transitions. [2023-12-02 15:48:26,830 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 669 transitions. Word has length 75 [2023-12-02 15:48:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:48:26,830 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 669 transitions. [2023-12-02 15:48:26,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.75) internal successors, (42), 23 states have internal predecessors, (42), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 15:48:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 669 transitions. [2023-12-02 15:48:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 15:48:26,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:48:26,832 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:48:26,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:48:27,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:48:27,033 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:48:27,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:48:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1331578648, now seen corresponding path program 1 times [2023-12-02 15:48:27,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:48:27,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747936170] [2023-12-02 15:48:27,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:48:27,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:48:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:48:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 15:48:27,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:48:27,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747936170] [2023-12-02 15:48:27,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747936170] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:48:27,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193651083] [2023-12-02 15:48:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:48:27,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:48:27,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:48:27,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:48:27,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fb73256-9fb3-4d22-9859-8335330a97a2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 15:48:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:48:27,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:48:27,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:48:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:48:27,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:48:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 15:48:27,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193651083] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:48:27,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1919249499] [2023-12-02 15:48:27,601 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 15:48:27,601 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:48:27,601 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:48:27,601 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:48:27,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:49:23,877 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 15:49:24,036 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 477 for LOIs [2023-12-02 15:49:26,121 INFO L180 IcfgInterpreter]: Interpretation finished