./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/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_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/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_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/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 a235b81518d1466c5f4be9b22c3eaea6ff575e28236a3798a0ed19e321bfc6e0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:53:22,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:53:22,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:53:22,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:53:22,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:53:22,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:53:22,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:53:22,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:53:22,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:53:22,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:53:22,534 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:53:22,534 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:53:22,535 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:53:22,535 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:53:22,536 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:53:22,536 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:53:22,537 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:53:22,537 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:53:22,538 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:53:22,538 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:53:22,539 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:53:22,541 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:53:22,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:53:22,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:53:22,542 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:53:22,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:53:22,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:53:22,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:53:22,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:53:22,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:53:22,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:53:22,545 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:53:22,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:53:22,545 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:53:22,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:53:22,546 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:53:22,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:53:22,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:53:22,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:53:22,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:53:22,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:53:22,547 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:53:22,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:53:22,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:53:22,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:53:22,548 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:53:22,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:53:22,549 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_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a235b81518d1466c5f4be9b22c3eaea6ff575e28236a3798a0ed19e321bfc6e0 [2023-12-02 12:53:22,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:53:22,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:53:22,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:53:22,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:53:22,777 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:53:22,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec3_product35.cil.c [2023-12-02 12:53:25,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:53:25,848 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:53:25,848 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c [2023-12-02 12:53:25,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/data/b44ef6e05/4acf2826057647a4ab5a172fcbe2743c/FLAG25fefb0df [2023-12-02 12:53:25,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/data/b44ef6e05/4acf2826057647a4ab5a172fcbe2743c [2023-12-02 12:53:25,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:53:25,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:53:25,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:53:25,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:53:25,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:53:25,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:53:25" (1/1) ... [2023-12-02 12:53:25,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b3f21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:25, skipping insertion in model container [2023-12-02 12:53:25,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:53:25" (1/1) ... [2023-12-02 12:53:25,984 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:53:26,585 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_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c[61781,61794] [2023-12-02 12:53:26,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:53:26,610 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:53:26,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 12:53:26,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [392] [2023-12-02 12:53:26,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [854] [2023-12-02 12:53:26,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [913] [2023-12-02 12:53:26,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1973] [2023-12-02 12:53:26,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2372] [2023-12-02 12:53:26,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2507] [2023-12-02 12:53:26,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2873] [2023-12-02 12:53:26,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2908] [2023-12-02 12:53:26,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2925] [2023-12-02 12:53:26,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2934] [2023-12-02 12:53:26,755 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_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c[61781,61794] [2023-12-02 12:53:26,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:53:26,789 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:53:26,795 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:53:26,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26 WrapperNode [2023-12-02 12:53:26,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:53:26,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:53:26,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:53:26,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:53:26,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,905 INFO L138 Inliner]: procedures = 138, calls = 256, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1210 [2023-12-02 12:53:26,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:53:26,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:53:26,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:53:26,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:53:26,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:26,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:27,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:53:27,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:53:27,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:53:27,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:53:27,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (1/1) ... [2023-12-02 12:53:27,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:53:27,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:53:27,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:53:27,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:53:27,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 12:53:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 12:53:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 12:53:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 12:53:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 12:53:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 12:53:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 12:53:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 12:53:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 12:53:27,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 12:53:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 12:53:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 12:53:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 12:53:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 12:53:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 12:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 12:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 12:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 12:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 12:53:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 12:53:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 12:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 12:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 12:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 12:53:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 12:53:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 12:53:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 12:53:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 12:53:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 12:53:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 12:53:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 12:53:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 12:53:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 12:53:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:53:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 12:53:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 12:53:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 12:53:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 12:53:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 12:53:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 12:53:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 12:53:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 12:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-02 12:53:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-02 12:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 12:53:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 12:53:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 12:53:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 12:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 12:53:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 12:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 12:53:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 12:53:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 12:53:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 12:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 12:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 12:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 12:53:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 12:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:53:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 12:53:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 12:53:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 12:53:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 12:53:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:53:27,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:53:27,318 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:53:27,322 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:53:28,257 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:53:28,842 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:53:28,842 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:53:28,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:53:28 BoogieIcfgContainer [2023-12-02 12:53:28,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:53:28,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:53:28,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:53:28,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:53:28,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:53:25" (1/3) ... [2023-12-02 12:53:28,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc8d3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:53:28, skipping insertion in model container [2023-12-02 12:53:28,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:26" (2/3) ... [2023-12-02 12:53:28,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc8d3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:53:28, skipping insertion in model container [2023-12-02 12:53:28,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:53:28" (3/3) ... [2023-12-02 12:53:28,853 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2023-12-02 12:53:28,870 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:53:28,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:53:28,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:53:28,931 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;@4b1fd8d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:53:28,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:53:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 140 states have (on average 1.2857142857142858) internal successors, (180), 147 states have internal predecessors, (180), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-02 12:53:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 12:53:28,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:28,954 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, 1, 1, 1] [2023-12-02 12:53:28,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:28,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:28,961 INFO L85 PathProgramCache]: Analyzing trace with hash -305398504, now seen corresponding path program 1 times [2023-12-02 12:53:28,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:28,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327346372] [2023-12-02 12:53:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 12:53:29,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:29,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327346372] [2023-12-02 12:53:29,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327346372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:29,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:29,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:53:29,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555738743] [2023-12-02 12:53:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:29,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:53:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:29,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:53:29,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:53:29,370 INFO L87 Difference]: Start difference. First operand has 252 states, 140 states have (on average 1.2857142857142858) internal successors, (180), 147 states have internal predecessors, (180), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 12:53:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:29,577 INFO L93 Difference]: Finished difference Result 411 states and 551 transitions. [2023-12-02 12:53:29,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:53:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 90 [2023-12-02 12:53:29,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:29,595 INFO L225 Difference]: With dead ends: 411 [2023-12-02 12:53:29,595 INFO L226 Difference]: Without dead ends: 248 [2023-12-02 12:53:29,602 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 12:53:29,606 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:29,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:53:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-02 12:53:29,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2023-12-02 12:53:29,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 138 states have (on average 1.2608695652173914) internal successors, (174), 143 states have internal predecessors, (174), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-02 12:53:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 331 transitions. [2023-12-02 12:53:29,678 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 331 transitions. Word has length 90 [2023-12-02 12:53:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:29,679 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 331 transitions. [2023-12-02 12:53:29,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 12:53:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 331 transitions. [2023-12-02 12:53:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 12:53:29,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:29,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:29,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:53:29,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:29,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1230866265, now seen corresponding path program 1 times [2023-12-02 12:53:29,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:29,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492905793] [2023-12-02 12:53:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:29,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:53:29,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:29,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492905793] [2023-12-02 12:53:29,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492905793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:29,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:29,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:53:29,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210454331] [2023-12-02 12:53:29,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:29,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:53:29,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:29,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:53:29,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:53:29,991 INFO L87 Difference]: Start difference. First operand 248 states and 331 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 12:53:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:30,147 INFO L93 Difference]: Finished difference Result 406 states and 532 transitions. [2023-12-02 12:53:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:53:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 102 [2023-12-02 12:53:30,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:30,152 INFO L225 Difference]: With dead ends: 406 [2023-12-02 12:53:30,152 INFO L226 Difference]: Without dead ends: 250 [2023-12-02 12:53:30,153 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 12:53:30,155 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:30,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 567 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:53:30,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-02 12:53:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2023-12-02 12:53:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 140 states have (on average 1.2571428571428571) internal successors, (176), 145 states have internal predecessors, (176), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-02 12:53:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 333 transitions. [2023-12-02 12:53:30,183 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 333 transitions. Word has length 102 [2023-12-02 12:53:30,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:30,183 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 333 transitions. [2023-12-02 12:53:30,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 12:53:30,184 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 333 transitions. [2023-12-02 12:53:30,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 12:53:30,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:30,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:30,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:53:30,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:30,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:30,188 INFO L85 PathProgramCache]: Analyzing trace with hash 6103349, now seen corresponding path program 1 times [2023-12-02 12:53:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:30,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930044142] [2023-12-02 12:53:30,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:30,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:53:30,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:30,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930044142] [2023-12-02 12:53:30,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930044142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:30,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:30,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:53:30,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875226557] [2023-12-02 12:53:30,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:30,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:53:30,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:53:30,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:53:30,365 INFO L87 Difference]: Start difference. First operand 250 states and 333 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 12:53:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:53:30,512 INFO L93 Difference]: Finished difference Result 535 states and 733 transitions. [2023-12-02 12:53:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:53:30,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 107 [2023-12-02 12:53:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:53:30,516 INFO L225 Difference]: With dead ends: 535 [2023-12-02 12:53:30,516 INFO L226 Difference]: Without dead ends: 303 [2023-12-02 12:53:30,518 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 12:53:30,519 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 59 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:53:30,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 586 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:53:30,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-02 12:53:30,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 298. [2023-12-02 12:53:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 174 states have (on average 1.3275862068965518) internal successors, (231), 179 states have internal predecessors, (231), 94 states have call successors, (94), 30 states have call predecessors, (94), 29 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-02 12:53:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 416 transitions. [2023-12-02 12:53:30,544 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 416 transitions. Word has length 107 [2023-12-02 12:53:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:53:30,545 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 416 transitions. [2023-12-02 12:53:30,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 12:53:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 416 transitions. [2023-12-02 12:53:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 12:53:30,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:30,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:30,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:53:30,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:30,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:30,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1654652369, now seen corresponding path program 1 times [2023-12-02 12:53:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:30,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749760175] [2023-12-02 12:53:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:30,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:53:30,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:30,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749760175] [2023-12-02 12:53:30,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749760175] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:53:30,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291873256] [2023-12-02 12:53:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:30,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:53:30,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:53:30,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:53:30,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:53:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:31,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:53:31,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:53:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:53:31,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:53:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:53:31,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291873256] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:53:31,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1085105790] [2023-12-02 12:53:31,436 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2023-12-02 12:53:31,437 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:53:31,441 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:53:31,447 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:53:31,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:54:25,574 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:54:25,770 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 12:54:25,969 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:55:26,001 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 527 DAG size of output: 527 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:55:36,408 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 528 DAG size of output: 527 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:55:48,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1085105790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:48,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 12:55:48,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 12:55:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22533080] [2023-12-02 12:55:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:48,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 12:55:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:48,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 12:55:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 12:55:48,237 INFO L87 Difference]: Start difference. First operand 298 states and 416 transitions. Second operand has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-12-02 12:55:58,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:58,414 INFO L93 Difference]: Finished difference Result 643 states and 932 transitions. [2023-12-02 12:55:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 12:55:58,415 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 108 [2023-12-02 12:55:58,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:58,418 INFO L225 Difference]: With dead ends: 643 [2023-12-02 12:55:58,419 INFO L226 Difference]: Without dead ends: 363 [2023-12-02 12:55:58,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 82.2s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 12:55:58,421 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 87 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:58,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3845 Invalid, 2174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 12:55:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-02 12:55:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 321. [2023-12-02 12:55:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 196 states have (on average 1.346938775510204) internal successors, (264), 201 states have internal predecessors, (264), 94 states have call successors, (94), 31 states have call predecessors, (94), 30 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-02 12:55:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 449 transitions. [2023-12-02 12:55:58,512 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 449 transitions. Word has length 108 [2023-12-02 12:55:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:58,513 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 449 transitions. [2023-12-02 12:55:58,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-12-02 12:55:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 449 transitions. [2023-12-02 12:55:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 12:55:58,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:58,516 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:58,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:55:58,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:55:58,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:55:58,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1330344407, now seen corresponding path program 1 times [2023-12-02 12:55:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:58,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629768681] [2023-12-02 12:55:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:58,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:55:58,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:58,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629768681] [2023-12-02 12:55:58,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629768681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:58,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:58,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:55:58,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049620994] [2023-12-02 12:55:58,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:58,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:55:58,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:58,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:55:58,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:55:58,818 INFO L87 Difference]: Start difference. First operand 321 states and 449 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 12:55:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:59,064 INFO L93 Difference]: Finished difference Result 745 states and 1078 transitions. [2023-12-02 12:55:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:55:59,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2023-12-02 12:55:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:59,068 INFO L225 Difference]: With dead ends: 745 [2023-12-02 12:55:59,069 INFO L226 Difference]: Without dead ends: 448 [2023-12-02 12:55:59,070 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 12:55:59,071 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 57 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:59,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 577 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:55:59,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-02 12:55:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 443. [2023-12-02 12:55:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 287 states have (on average 1.4076655052264808) internal successors, (404), 292 states have internal predecessors, (404), 125 states have call successors, (125), 31 states have call predecessors, (125), 30 states have return successors, (122), 121 states have call predecessors, (122), 122 states have call successors, (122) [2023-12-02 12:55:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 651 transitions. [2023-12-02 12:55:59,179 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 651 transitions. Word has length 102 [2023-12-02 12:55:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:59,180 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 651 transitions. [2023-12-02 12:55:59,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 12:55:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 651 transitions. [2023-12-02 12:55:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 12:55:59,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:59,182 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:59,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:55:59,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:55:59,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1772714838, now seen corresponding path program 1 times [2023-12-02 12:55:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:59,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112233223] [2023-12-02 12:55:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:59,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:55:59,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:59,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112233223] [2023-12-02 12:55:59,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112233223] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:55:59,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957384122] [2023-12-02 12:55:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:59,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:55:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:55:59,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:55:59,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 12:55:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:59,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 12:55:59,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:55:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:55:59,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:55:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 12:55:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957384122] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:55:59,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [795988585] [2023-12-02 12:55:59,782 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2023-12-02 12:55:59,782 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 12:55:59,783 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 12:55:59,783 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 12:55:59,783 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 12:57:25,229 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 12:57:25,401 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 507 for LOIs [2023-12-02 12:57:27,776 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 12:57:50,698 WARN L293 SmtUtils]: Spent 6.76s 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 12:58:01,118 WARN L293 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 537 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:58:43,947 WARN L293 SmtUtils]: Spent 10.19s on a formula simplification. DAG size of input: 530 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:58:54,389 WARN L293 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 531 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:59:18,119 WARN L293 SmtUtils]: Spent 23.28s on a formula simplification. DAG size of input: 543 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:59:42,418 WARN L293 SmtUtils]: Spent 23.80s on a formula simplification. DAG size of input: 541 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:00:07,045 WARN L293 SmtUtils]: Spent 24.08s on a formula simplification. DAG size of input: 545 DAG size of output: 534 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:00:30,800 WARN L293 SmtUtils]: Spent 23.19s on a formula simplification. DAG size of input: 543 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:00:42,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [795988585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:00:42,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:00:42,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:00:42,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385017436] [2023-12-02 13:00:42,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:00:42,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:00:42,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:00:42,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:00:42,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:00:42,796 INFO L87 Difference]: Start difference. First operand 443 states and 651 transitions. Second operand has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2023-12-02 13:01:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:01,877 INFO L93 Difference]: Finished difference Result 904 states and 1359 transitions. [2023-12-02 13:01:01,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:01:01,878 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 103 [2023-12-02 13:01:01,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:01,882 INFO L225 Difference]: With dead ends: 904 [2023-12-02 13:01:01,883 INFO L226 Difference]: Without dead ends: 524 [2023-12-02 13:01:01,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 195.0s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:01:01,886 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 176 mSDsluCounter, 4298 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 4567 SdHoareTripleChecker+Invalid, 2975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:01,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 4567 Invalid, 2975 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2023-12-02 13:01:01,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-12-02 13:01:02,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 457. [2023-12-02 13:01:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 299 states have (on average 1.4080267558528428) internal successors, (421), 304 states have internal predecessors, (421), 126 states have call successors, (126), 32 states have call predecessors, (126), 31 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2023-12-02 13:01:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 670 transitions. [2023-12-02 13:01:02,015 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 670 transitions. Word has length 103 [2023-12-02 13:01:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:02,016 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 670 transitions. [2023-12-02 13:01:02,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2023-12-02 13:01:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 670 transitions. [2023-12-02 13:01:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 13:01:02,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:02,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:01:02,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:01:02,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 13:01:02,224 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:01:02,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash 401599734, now seen corresponding path program 1 times [2023-12-02 13:01:02,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:02,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565515817] [2023-12-02 13:01:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:02,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:01:02,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:02,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565515817] [2023-12-02 13:01:02,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565515817] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:01:02,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872238926] [2023-12-02 13:01:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:02,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:01:02,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:01:02,412 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:01:02,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:01:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:02,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:01:02,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:01:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:01:02,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:01:02,851 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:01:02,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872238926] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:01:02,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2146553604] [2023-12-02 13:01:02,855 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2023-12-02 13:01:02,855 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:01:02,856 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:01:02,856 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:01:02,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:02:45,645 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 13:02:45,809 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 566 for LOIs [2023-12-02 13:02:47,749 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 575 for LOIs [2023-12-02 13:02:49,784 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 498 for LOIs [2023-12-02 13:02:50,630 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 13:02:50,801 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:03:54,584 WARN L293 SmtUtils]: Spent 12.32s on a formula simplification. DAG size of input: 603 DAG size of output: 598 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:08,041 WARN L293 SmtUtils]: Spent 13.05s on a formula simplification. DAG size of input: 604 DAG size of output: 598 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:31,249 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 580 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:42,399 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 575 DAG size of output: 572 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:48,008 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 581 DAG size of output: 578 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:53,645 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 575 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:04:59,217 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 566 DAG size of output: 563 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:05:04,809 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 572 DAG size of output: 569 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:05:10,560 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 566 DAG size of output: 562 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:05:10,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2146553604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:05:10,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:05:10,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:05:10,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018335497] [2023-12-02 13:05:10,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:05:10,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:05:10,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:05:10,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:05:10,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:05:10,570 INFO L87 Difference]: Start difference. First operand 457 states and 670 transitions. Second operand has 33 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-12-02 13:05:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:05:40,191 INFO L93 Difference]: Finished difference Result 929 states and 1394 transitions. [2023-12-02 13:05:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:05:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 117 [2023-12-02 13:05:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:05:40,202 INFO L225 Difference]: With dead ends: 929 [2023-12-02 13:05:40,202 INFO L226 Difference]: Without dead ends: 549 [2023-12-02 13:05:40,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 139.7s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:05:40,204 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 90 mSDsluCounter, 5206 mSDsCounter, 0 mSdLazyCounter, 4454 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 4463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:05:40,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5475 Invalid, 4463 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 4454 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-12-02 13:05:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-12-02 13:05:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 493. [2023-12-02 13:05:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 329 states have (on average 1.4072948328267476) internal successors, (463), 334 states have internal predecessors, (463), 129 states have call successors, (129), 35 states have call predecessors, (129), 34 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2023-12-02 13:05:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 718 transitions. [2023-12-02 13:05:40,386 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 718 transitions. Word has length 117 [2023-12-02 13:05:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:05:40,387 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 718 transitions. [2023-12-02 13:05:40,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-12-02 13:05:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 718 transitions. [2023-12-02 13:05:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 13:05:40,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:05:40,389 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:05:40,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:05:40,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 13:05:40,590 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:05:40,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:05:40,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1084470371, now seen corresponding path program 1 times [2023-12-02 13:05:40,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:05:40,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878252072] [2023-12-02 13:05:40,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:40,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:05:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:05:40,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:05:40,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878252072] [2023-12-02 13:05:40,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878252072] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:05:40,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034438815] [2023-12-02 13:05:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:40,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:05:40,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:05:40,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:05:40,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c08c3ca-c5e4-46d9-9b52-e76febdc40ec/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:05:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:41,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:05:41,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:05:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:05:41,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:05:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:05:41,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034438815] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:05:41,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [808757585] [2023-12-02 13:05:41,106 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2023-12-02 13:05:41,106 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:05:41,107 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:05:41,107 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:05:41,107 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:06:49,157 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 13:06:49,319 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 13:06:49,486 INFO L180 IcfgInterpreter]: Interpretation finished