./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/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_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/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_06fed7aa-eb30-43b6-a31d-e6c070575d6f/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 be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:32:17,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:32:17,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:32:17,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:32:17,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:32:17,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:32:17,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:32:17,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:32:17,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:32:17,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:32:17,967 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:32:17,968 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:32:17,968 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:32:17,969 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:32:17,969 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:32:17,970 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:32:17,970 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:32:17,971 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:32:17,971 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:32:17,972 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:32:17,972 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:32:17,973 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:32:17,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:32:17,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:32:17,974 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:32:17,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:32:17,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:32:17,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:32:17,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:32:17,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:32:17,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:32:17,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:32:17,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:32:17,977 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:32:17,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:32:17,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:32:17,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:32:17,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:32:17,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:32:17,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:32:17,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:32:17,979 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:32:17,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:32:17,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:32:17,979 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:32:17,979 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:32:17,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:32:17,980 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_06fed7aa-eb30-43b6-a31d-e6c070575d6f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 [2023-12-02 12:32:18,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:32:18,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:32:18,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:32:18,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:32:18,200 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:32:18,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2023-12-02 12:32:23,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:32:23,931 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:32:23,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2023-12-02 12:32:23,956 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/data/bf8aecc43/43d928ea46fa4eae9ca0d5e38c8d6fb6/FLAGea7dd8a1a [2023-12-02 12:32:24,191 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/data/bf8aecc43/43d928ea46fa4eae9ca0d5e38c8d6fb6 [2023-12-02 12:32:24,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:32:24,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:32:24,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:32:24,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:32:24,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:32:24,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:32:24" (1/1) ... [2023-12-02 12:32:24,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a2c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:24, skipping insertion in model container [2023-12-02 12:32:24,204 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:32:24" (1/1) ... [2023-12-02 12:32:24,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:32:24,736 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_06fed7aa-eb30-43b6-a31d-e6c070575d6f/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c[43418,43431] [2023-12-02 12:32:24,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:32:24,840 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:32:24,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2023-12-02 12:32:24,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [416] [2023-12-02 12:32:24,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1488] [2023-12-02 12:32:24,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1790] [2023-12-02 12:32:24,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1810] [2023-12-02 12:32:24,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2029] [2023-12-02 12:32:24,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2038] [2023-12-02 12:32:24,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2136] [2023-12-02 12:32:24,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2502] [2023-12-02 12:32:24,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2537] [2023-12-02 12:32:24,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2938] [2023-12-02 12:32:24,931 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_06fed7aa-eb30-43b6-a31d-e6c070575d6f/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c[43418,43431] [2023-12-02 12:32:24,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:32:25,060 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:32:25,069 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:32:25,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25 WrapperNode [2023-12-02 12:32:25,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:32:25,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:32:25,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:32:25,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:32:25,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,181 INFO L138 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1099 [2023-12-02 12:32:25,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:32:25,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:32:25,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:32:25,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:32:25,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:32:25,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:32:25,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:32:25,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:32:25,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (1/1) ... [2023-12-02 12:32:25,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:32:25,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:32:25,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:32:25,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:32:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 12:32:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 12:32:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 12:32:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 12:32:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-02 12:32:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-02 12:32:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 12:32:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 12:32:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 12:32:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 12:32:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 12:32:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 12:32:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 12:32:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 12:32:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 12:32:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 12:32:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 12:32:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 12:32:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 12:32:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 12:32:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 12:32:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 12:32:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 12:32:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:32:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 12:32:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 12:32:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 12:32:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 12:32:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 12:32:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 12:32:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 12:32:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 12:32:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 12:32:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 12:32:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 12:32:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 12:32:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 12:32:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 12:32:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 12:32:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 12:32:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:32:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 12:32:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 12:32:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 12:32:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 12:32:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:32:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:32:25,618 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:32:25,621 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:32:26,552 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:32:27,272 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:32:27,273 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:32:27,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:32:27 BoogieIcfgContainer [2023-12-02 12:32:27,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:32:27,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:32:27,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:32:27,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:32:27,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:32:24" (1/3) ... [2023-12-02 12:32:27,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbd41be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:32:27, skipping insertion in model container [2023-12-02 12:32:27,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:32:25" (2/3) ... [2023-12-02 12:32:27,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cbd41be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:32:27, skipping insertion in model container [2023-12-02 12:32:27,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:32:27" (3/3) ... [2023-12-02 12:32:27,284 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product25.cil.c [2023-12-02 12:32:27,308 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:32:27,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:32:27,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:32:27,378 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;@239df9a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:32:27,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:32:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-02 12:32:27,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 12:32:27,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:27,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:27,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:27,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:27,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2039703958, now seen corresponding path program 1 times [2023-12-02 12:32:27,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356232611] [2023-12-02 12:32:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:32:27,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:27,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356232611] [2023-12-02 12:32:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356232611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:27,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:27,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:32:27,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450546600] [2023-12-02 12:32:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:27,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:32:27,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:32:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:32:27,855 INFO L87 Difference]: Start difference. First operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:32:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:27,984 INFO L93 Difference]: Finished difference Result 268 states and 359 transitions. [2023-12-02 12:32:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:32:27,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-12-02 12:32:27,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:28,000 INFO L225 Difference]: With dead ends: 268 [2023-12-02 12:32:28,000 INFO L226 Difference]: Without dead ends: 177 [2023-12-02 12:32:28,005 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 12:32:28,008 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:28,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:32:28,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-02 12:32:28,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-12-02 12:32:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 103 states have internal predecessors, (130), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 12:32:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 237 transitions. [2023-12-02 12:32:28,066 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 237 transitions. Word has length 71 [2023-12-02 12:32:28,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:28,068 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 237 transitions. [2023-12-02 12:32:28,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:32:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 237 transitions. [2023-12-02 12:32:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 12:32:28,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:28,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:28,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:32:28,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:28,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash 97439075, now seen corresponding path program 1 times [2023-12-02 12:32:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:28,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772469555] [2023-12-02 12:32:28,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:28,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:32:28,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:28,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772469555] [2023-12-02 12:32:28,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772469555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:28,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:28,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:28,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684052969] [2023-12-02 12:32:28,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:28,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:28,272 INFO L87 Difference]: Start difference. First operand 177 states and 237 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:32:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:28,385 INFO L93 Difference]: Finished difference Result 264 states and 344 transitions. [2023-12-02 12:32:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:28,386 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2023-12-02 12:32:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:28,388 INFO L225 Difference]: With dead ends: 264 [2023-12-02 12:32:28,389 INFO L226 Difference]: Without dead ends: 179 [2023-12-02 12:32:28,390 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 12:32:28,392 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:28,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:32:28,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-02 12:32:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-12-02 12:32:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 103 states have (on average 1.2815533980582525) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 12:32:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2023-12-02 12:32:28,413 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 72 [2023-12-02 12:32:28,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:28,413 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2023-12-02 12:32:28,413 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:32:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2023-12-02 12:32:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 12:32:28,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:28,417 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:28,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:32:28,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:28,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:28,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1775866274, now seen corresponding path program 1 times [2023-12-02 12:32:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:28,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692631632] [2023-12-02 12:32:28,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:32:28,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:28,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692631632] [2023-12-02 12:32:28,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692631632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:32:28,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:32:28,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:32:28,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929509276] [2023-12-02 12:32:28,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:32:28,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:32:28,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:32:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:32:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:32:28,571 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:32:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:32:28,693 INFO L93 Difference]: Finished difference Result 393 states and 545 transitions. [2023-12-02 12:32:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:32:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 12:32:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:32:28,697 INFO L225 Difference]: With dead ends: 393 [2023-12-02 12:32:28,697 INFO L226 Difference]: Without dead ends: 232 [2023-12-02 12:32:28,698 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 12:32:28,700 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 59 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:32:28,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 403 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:32:28,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-02 12:32:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2023-12-02 12:32:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 137 states have (on average 1.364963503649635) internal successors, (187), 139 states have internal predecessors, (187), 68 states have call successors, (68), 21 states have call predecessors, (68), 21 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-02 12:32:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 322 transitions. [2023-12-02 12:32:28,725 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 322 transitions. Word has length 77 [2023-12-02 12:32:28,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:32:28,726 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 322 transitions. [2023-12-02 12:32:28,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 12:32:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 322 transitions. [2023-12-02 12:32:28,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 12:32:28,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:32:28,729 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:32:28,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:32:28,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:32:28,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:32:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2030110272, now seen corresponding path program 1 times [2023-12-02 12:32:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:32:28,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190766319] [2023-12-02 12:32:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:28,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:32:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:28,916 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:32:28,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:32:28,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190766319] [2023-12-02 12:32:28,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190766319] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:32:28,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125298675] [2023-12-02 12:32:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:32:28,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:32:28,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:32:28,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:32:28,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:32:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:32:29,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:32:29,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:32:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:32:29,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:32:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:32:29,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125298675] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:32:29,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [51871756] [2023-12-02 12:32:29,521 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 12:32:29,521 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:32:29,526 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:32:29,531 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:32:29,532 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:33:17,694 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:33:17,884 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 12:33:18,142 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:34:20,504 WARN L293 SmtUtils]: Spent 10.47s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:34:36,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [51871756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:34:36,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:34:36,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 12:34:36,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563551743] [2023-12-02 12:34:36,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:34:36,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 12:34:36,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:34:36,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 12:34:36,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 12:34:36,805 INFO L87 Difference]: Start difference. First operand 227 states and 322 transitions. Second operand has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:34:52,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:34:52,351 INFO L93 Difference]: Finished difference Result 501 states and 744 transitions. [2023-12-02 12:34:52,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 12:34:52,352 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2023-12-02 12:34:52,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:34:52,356 INFO L225 Difference]: With dead ends: 501 [2023-12-02 12:34:52,357 INFO L226 Difference]: Without dead ends: 292 [2023-12-02 12:34:52,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 82.3s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 12:34:52,360 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 87 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:34:52,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2842 Invalid, 2499 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 12:34:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-02 12:34:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 250. [2023-12-02 12:34:52,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 159 states have (on average 1.3836477987421383) internal successors, (220), 161 states have internal predecessors, (220), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-02 12:34:52,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 355 transitions. [2023-12-02 12:34:52,471 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 355 transitions. Word has length 78 [2023-12-02 12:34:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:34:52,472 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 355 transitions. [2023-12-02 12:34:52,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:34:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 355 transitions. [2023-12-02 12:34:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 12:34:52,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:34:52,475 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:34:52,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-02 12:34:52,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:34:52,684 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:34:52,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:34:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1358999769, now seen corresponding path program 1 times [2023-12-02 12:34:52,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:34:52,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638308481] [2023-12-02 12:34:52,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:34:52,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:34:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:34:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 12:34:52,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:34:52,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638308481] [2023-12-02 12:34:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638308481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:34:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:34:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:34:52,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125919802] [2023-12-02 12:34:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:34:52,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:34:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:34:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:34:52,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:34:52,788 INFO L87 Difference]: Start difference. First operand 250 states and 355 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 12:34:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:34:53,013 INFO L93 Difference]: Finished difference Result 603 states and 890 transitions. [2023-12-02 12:34:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:34:53,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2023-12-02 12:34:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:34:53,018 INFO L225 Difference]: With dead ends: 603 [2023-12-02 12:34:53,018 INFO L226 Difference]: Without dead ends: 377 [2023-12-02 12:34:53,019 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 12:34:53,021 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 57 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:34:53,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 406 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:34:53,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-02 12:34:53,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 372. [2023-12-02 12:34:53,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 250 states have (on average 1.44) internal successors, (360), 252 states have internal predecessors, (360), 99 states have call successors, (99), 22 states have call predecessors, (99), 22 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-02 12:34:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 557 transitions. [2023-12-02 12:34:53,144 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 557 transitions. Word has length 83 [2023-12-02 12:34:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:34:53,145 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 557 transitions. [2023-12-02 12:34:53,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 12:34:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 557 transitions. [2023-12-02 12:34:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 12:34:53,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:34:53,148 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:34:53,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:34:53,149 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:34:53,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:34:53,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2011236468, now seen corresponding path program 1 times [2023-12-02 12:34:53,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:34:53,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707642308] [2023-12-02 12:34:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:34:53,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:34:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:34:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 12:34:53,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:34:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707642308] [2023-12-02 12:34:53,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707642308] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:34:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701198288] [2023-12-02 12:34:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:34:53,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:34:53,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:34:53,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:34:53,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:34:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:34:53,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:34:53,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:34:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 12:34:53,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:34:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 12:34:53,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701198288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:34:53,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1210780335] [2023-12-02 12:34:53,720 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 12:34:53,720 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:34:53,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:34:53,721 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:34:53,721 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:35:58,607 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:35:58,809 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 12:36:01,354 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:36:24,122 WARN L293 SmtUtils]: Spent 6.21s 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 12:36:33,319 WARN L293 SmtUtils]: Spent 9.02s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:37:11,653 WARN L293 SmtUtils]: Spent 9.12s 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 12:37:40,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1210780335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:37:40,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:37:40,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 12:37:40,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325611965] [2023-12-02 12:37:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:37:40,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 12:37:40,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:37:40,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 12:37:40,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:37:40,881 INFO L87 Difference]: Start difference. First operand 372 states and 557 transitions. Second operand has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 12:37:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:37:53,424 INFO L93 Difference]: Finished difference Result 762 states and 1171 transitions. [2023-12-02 12:37:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 12:37:53,425 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2023-12-02 12:37:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:37:53,427 INFO L225 Difference]: With dead ends: 762 [2023-12-02 12:37:53,428 INFO L226 Difference]: Without dead ends: 453 [2023-12-02 12:37:53,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 99.5s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:37:53,429 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 151 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 2537 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:37:53,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 2926 Invalid, 2545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2537 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-12-02 12:37:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-12-02 12:37:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 386. [2023-12-02 12:37:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 262 states have (on average 1.4389312977099236) internal successors, (377), 264 states have internal predecessors, (377), 100 states have call successors, (100), 23 states have call predecessors, (100), 23 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-02 12:37:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 576 transitions. [2023-12-02 12:37:53,551 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 576 transitions. Word has length 84 [2023-12-02 12:37:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:37:53,551 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 576 transitions. [2023-12-02 12:37:53,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 12:37:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 576 transitions. [2023-12-02 12:37:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 12:37:53,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:37:53,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:37:53,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 12:37:53,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:37:53,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:37:53,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:37:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash -276819963, now seen corresponding path program 1 times [2023-12-02 12:37:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:37:53,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613352440] [2023-12-02 12:37:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:53,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:37:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:37:53,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:37:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613352440] [2023-12-02 12:37:53,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613352440] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:37:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247225160] [2023-12-02 12:37:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:37:53,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:37:53,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:37:53,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:37:53,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 12:37:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:37:54,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:37:54,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:37:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:37:54,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:37:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:37:54,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247225160] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:37:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [881902913] [2023-12-02 12:37:54,389 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2023-12-02 12:37:54,390 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:37:54,390 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:37:54,391 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:37:54,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:39:27,911 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:39:28,072 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 542 for LOIs [2023-12-02 12:39:29,829 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 551 for LOIs [2023-12-02 12:39:31,667 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 12:39:32,399 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 12:39:32,615 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:40:29,197 WARN L293 SmtUtils]: Spent 10.86s 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 12:41:16,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [881902913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:41:16,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:41:16,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 12:41:16,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74534779] [2023-12-02 12:41:16,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:41:16,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 12:41:16,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:41:16,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 12:41:16,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 12:41:16,587 INFO L87 Difference]: Start difference. First operand 386 states and 576 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 12:41:44,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:41:44,974 INFO L93 Difference]: Finished difference Result 787 states and 1206 transitions. [2023-12-02 12:41:44,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 12:41:44,975 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2023-12-02 12:41:44,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:41:44,978 INFO L225 Difference]: With dead ends: 787 [2023-12-02 12:41:44,978 INFO L226 Difference]: Without dead ends: 478 [2023-12-02 12:41:44,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 111.5s TimeCoverageRelationStatistics Valid=126, Invalid=1434, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 12:41:44,980 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 91 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 3393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:41:44,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 3108 Invalid, 3393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2023-12-02 12:41:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-12-02 12:41:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 422. [2023-12-02 12:41:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 292 states have (on average 1.4349315068493151) internal successors, (419), 294 states have internal predecessors, (419), 103 states have call successors, (103), 26 states have call predecessors, (103), 26 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-02 12:41:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 624 transitions. [2023-12-02 12:41:45,147 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 624 transitions. Word has length 87 [2023-12-02 12:41:45,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:41:45,147 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 624 transitions. [2023-12-02 12:41:45,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 12:41:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 624 transitions. [2023-12-02 12:41:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 12:41:45,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:41:45,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:41:45,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 12:41:45,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:41:45,350 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:41:45,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:41:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash -573261380, now seen corresponding path program 1 times [2023-12-02 12:41:45,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:41:45,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120194490] [2023-12-02 12:41:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:41:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:41:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:41:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:41:45,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:41:45,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120194490] [2023-12-02 12:41:45,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120194490] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:41:45,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904494503] [2023-12-02 12:41:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:41:45,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:41:45,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:41:45,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:41:45,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 12:41:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:41:45,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:41:45,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:41:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:41:45,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:41:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 12:41:45,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904494503] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:41:45,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1463864217] [2023-12-02 12:41:45,870 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 12:41:45,870 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:41:45,870 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:41:45,871 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:41:45,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:42:43,812 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:42:43,975 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 12:42:44,192 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:43:39,993 WARN L293 SmtUtils]: Spent 9.33s 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 12:44:26,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1463864217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:44:26,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:44:26,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 12:44:26,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761934696] [2023-12-02 12:44:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:44:26,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 12:44:26,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:44:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 12:44:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 12:44:26,211 INFO L87 Difference]: Start difference. First operand 422 states and 624 transitions. Second operand has 32 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 23 states have internal predecessors, (47), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:44:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:44:42,918 INFO L93 Difference]: Finished difference Result 801 states and 1221 transitions. [2023-12-02 12:44:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 12:44:42,918 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 23 states have internal predecessors, (47), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 86 [2023-12-02 12:44:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:44:42,921 INFO L225 Difference]: With dead ends: 801 [2023-12-02 12:44:42,921 INFO L226 Difference]: Without dead ends: 492 [2023-12-02 12:44:42,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 105.4s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 12:44:42,923 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 225 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:44:42,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 3103 Invalid, 2794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-12-02 12:44:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-02 12:44:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 442. [2023-12-02 12:44:43,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 312 states have (on average 1.439102564102564) internal successors, (449), 314 states have internal predecessors, (449), 103 states have call successors, (103), 26 states have call predecessors, (103), 26 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-02 12:44:43,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 654 transitions. [2023-12-02 12:44:43,091 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 654 transitions. Word has length 86 [2023-12-02 12:44:43,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:44:43,091 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 654 transitions. [2023-12-02 12:44:43,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 23 states have internal predecessors, (47), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 12:44:43,092 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 654 transitions. [2023-12-02 12:44:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 12:44:43,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:44:43,094 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:44:43,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 12:44:43,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:44:43,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:44:43,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:44:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -473647446, now seen corresponding path program 1 times [2023-12-02 12:44:43,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:44:43,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28303265] [2023-12-02 12:44:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:44:43,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:44:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:44:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 12:44:43,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:44:43,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28303265] [2023-12-02 12:44:43,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28303265] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:44:43,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719641319] [2023-12-02 12:44:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:44:43,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:44:43,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:44:43,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:44:43,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fed7aa-eb30-43b6-a31d-e6c070575d6f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 12:44:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:44:43,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 12:44:43,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:44:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 12:44:43,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:44:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 12:44:43,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719641319] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:44:43,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [420838600] [2023-12-02 12:44:43,886 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 12:44:43,886 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:44:43,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:44:43,886 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:44:43,886 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:45:40,613 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:45:40,779 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 12:45:42,814 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 247 for LOIs [2023-12-02 12:45:46,341 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2023-12-02 12:45:48,870 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2023-12-02 12:45:49,035 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 267 for LOIs [2023-12-02 12:45:55,176 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 254 for LOIs [2023-12-02 12:45:55,353 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 254 for LOIs [2023-12-02 12:45:55,566 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 270 for LOIs [2023-12-02 12:45:56,896 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2023-12-02 12:45:57,039 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:46:18,022 WARN L293 SmtUtils]: Spent 6.09s 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 12:46:27,116 WARN L293 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)