./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product31.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_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/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_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/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_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/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 ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:24:36,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:24:36,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 08:24:36,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:24:36,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:24:36,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:24:36,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:24:36,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:24:36,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:24:36,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:24:36,461 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:24:36,462 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:24:36,462 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:24:36,463 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:24:36,463 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:24:36,464 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:24:36,465 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:24:36,465 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:24:36,466 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:24:36,466 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:24:36,467 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:24:36,468 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:24:36,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:24:36,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:24:36,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 08:24:36,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:24:36,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 08:24:36,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:24:36,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:24:36,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:24:36,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:24:36,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 08:24:36,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:24:36,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:24:36,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:24:36,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:24:36,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:24:36,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:24:36,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:24:36,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:24:36,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:24:36,476 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:24:36,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:24:36,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:24:36,477 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:24:36,477 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:24:36,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:24:36,477 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_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 [2023-12-02 08:24:36,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:24:36,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:24:36,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:24:36,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:24:36,744 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:24:36,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2023-12-02 08:24:39,515 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:24:39,798 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:24:39,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2023-12-02 08:24:39,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/data/92c247856/47343391d6f7493096061f09db17176c/FLAG8026bc17a [2023-12-02 08:24:39,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/data/92c247856/47343391d6f7493096061f09db17176c [2023-12-02 08:24:39,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:24:39,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:24:39,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:24:39,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:24:39,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:24:39,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:24:39" (1/1) ... [2023-12-02 08:24:39,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2d45d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:39, skipping insertion in model container [2023-12-02 08:24:39,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:24:39" (1/1) ... [2023-12-02 08:24:39,928 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:24:40,424 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_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2023-12-02 08:24:40,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:24:40,442 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:24:40,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-02 08:24:40,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [66] [2023-12-02 08:24:40,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [108] [2023-12-02 08:24:40,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2023-12-02 08:24:40,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [855] [2023-12-02 08:24:40,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [992] [2023-12-02 08:24:40,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1217] [2023-12-02 08:24:40,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2023-12-02 08:24:40,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1537] [2023-12-02 08:24:40,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1934] [2023-12-02 08:24:40,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3001] [2023-12-02 08:24:40,533 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_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c[64142,64155] [2023-12-02 08:24:40,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:24:40,560 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:24:40,568 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:24:40,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40 WrapperNode [2023-12-02 08:24:40,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:24:40,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:24:40,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:24:40,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:24:40,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,666 INFO L138 Inliner]: procedures = 131, calls = 218, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1040 [2023-12-02 08:24:40,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:24:40,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:24:40,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:24:40,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:24:40,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:24:40,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:24:40,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:24:40,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:24:40,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (1/1) ... [2023-12-02 08:24:40,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:24:40,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:24:40,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:24:40,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:24:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 08:24:40,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 08:24:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 08:24:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 08:24:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 08:24:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 08:24:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 08:24:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 08:24:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 08:24:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 08:24:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 08:24:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 08:24:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 08:24:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 08:24:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 08:24:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 08:24:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 08:24:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 08:24:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 08:24:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 08:24:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 08:24:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 08:24:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 08:24:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 08:24:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 08:24:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:24:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 08:24:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 08:24:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 08:24:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 08:24:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 08:24:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 08:24:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 08:24:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 08:24:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 08:24:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 08:24:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 08:24:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 08:24:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 08:24:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 08:24:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 08:24:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 08:24:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 08:24:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 08:24:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 08:24:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 08:24:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:24:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 08:24:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 08:24:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:24:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:24:41,008 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:24:41,010 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:24:41,678 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:24:42,164 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:24:42,164 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:24:42,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:24:42 BoogieIcfgContainer [2023-12-02 08:24:42,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:24:42,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:24:42,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:24:42,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:24:42,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:24:39" (1/3) ... [2023-12-02 08:24:42,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96cccd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:24:42, skipping insertion in model container [2023-12-02 08:24:42,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:40" (2/3) ... [2023-12-02 08:24:42,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96cccd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:24:42, skipping insertion in model container [2023-12-02 08:24:42,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:24:42" (3/3) ... [2023-12-02 08:24:42,174 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2023-12-02 08:24:42,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:24:42,194 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:24:42,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:24:42,254 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;@7857fc65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:24:42,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:24:42,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 08:24:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 08:24:42,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:24:42,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:24:42,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:24:42,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:24:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1071951801, now seen corresponding path program 1 times [2023-12-02 08:24:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:24:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045175952] [2023-12-02 08:24:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:24:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:24:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:24:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:24:42,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:24:42,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045175952] [2023-12-02 08:24:42,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045175952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:24:42,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:24:42,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:24:42,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931606973] [2023-12-02 08:24:42,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:24:42,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 08:24:42,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:24:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 08:24:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 08:24:42,664 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:24:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:24:42,797 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2023-12-02 08:24:42,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 08:24:42,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2023-12-02 08:24:42,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:24:42,813 INFO L225 Difference]: With dead ends: 319 [2023-12-02 08:24:42,813 INFO L226 Difference]: Without dead ends: 198 [2023-12-02 08:24:42,819 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 08:24:42,823 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:24:42,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:24:42,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-02 08:24:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2023-12-02 08:24:42,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-02 08:24:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2023-12-02 08:24:42,889 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2023-12-02 08:24:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:24:42,890 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2023-12-02 08:24:42,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:24:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2023-12-02 08:24:42,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 08:24:42,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:24:42,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:24:42,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:24:42,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:24:42,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:24:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash 559181426, now seen corresponding path program 1 times [2023-12-02 08:24:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:24:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524375345] [2023-12-02 08:24:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:24:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:24:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:24:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:24:43,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:24:43,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524375345] [2023-12-02 08:24:43,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524375345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:24:43,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:24:43,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:24:43,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272461707] [2023-12-02 08:24:43,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:24:43,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:24:43,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:24:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:24:43,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:24:43,101 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:24:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:24:43,218 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2023-12-02 08:24:43,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:24:43,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2023-12-02 08:24:43,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:24:43,223 INFO L225 Difference]: With dead ends: 315 [2023-12-02 08:24:43,223 INFO L226 Difference]: Without dead ends: 200 [2023-12-02 08:24:43,224 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 08:24:43,226 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:24:43,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:24:43,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-02 08:24:43,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-12-02 08:24:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-02 08:24:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2023-12-02 08:24:43,251 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2023-12-02 08:24:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:24:43,252 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2023-12-02 08:24:43,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:24:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2023-12-02 08:24:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 08:24:43,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:24:43,255 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:24:43,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 08:24:43,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:24:43,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:24:43,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1908674285, now seen corresponding path program 1 times [2023-12-02 08:24:43,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:24:43,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980320153] [2023-12-02 08:24:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:24:43,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:24:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:24:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:24:43,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:24:43,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980320153] [2023-12-02 08:24:43,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980320153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:24:43,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:24:43,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:24:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119133799] [2023-12-02 08:24:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:24:43,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:24:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:24:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:24:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:24:43,390 INFO L87 Difference]: Start difference. First operand 200 states and 267 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:24:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:24:43,508 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2023-12-02 08:24:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:24:43,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2023-12-02 08:24:43,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:24:43,512 INFO L225 Difference]: With dead ends: 430 [2023-12-02 08:24:43,512 INFO L226 Difference]: Without dead ends: 248 [2023-12-02 08:24:43,513 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 08:24:43,515 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 57 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:24:43,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 464 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:24:43,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-02 08:24:43,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2023-12-02 08:24:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-02 08:24:43,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2023-12-02 08:24:43,541 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2023-12-02 08:24:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:24:43,541 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2023-12-02 08:24:43,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 08:24:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2023-12-02 08:24:43,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 08:24:43,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:24:43,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:24:43,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 08:24:43,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:24:43,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:24:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1584579433, now seen corresponding path program 1 times [2023-12-02 08:24:43,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:24:43,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190366270] [2023-12-02 08:24:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:24:43,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:24:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:24:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:24:43,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:24:43,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190366270] [2023-12-02 08:24:43,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190366270] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:24:43,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622296215] [2023-12-02 08:24:43,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:24:43,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:24:43,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:24:43,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:24:43,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:24:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:24:44,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:24:44,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:24:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:24:44,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:24:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:24:44,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622296215] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:24:44,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [263316112] [2023-12-02 08:24:44,271 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 08:24:44,271 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:24:44,275 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:24:44,280 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:24:44,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:25:25,282 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 08:25:25,452 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 08:25:25,621 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:26:29,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [263316112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:26:29,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:26:29,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 08:26:29,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256823121] [2023-12-02 08:26:29,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:26:29,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 08:26:29,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:26:29,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 08:26:29,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 08:26:29,757 INFO L87 Difference]: Start difference. First operand 243 states and 342 transitions. Second operand has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 08:26:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:26:39,756 INFO L93 Difference]: Finished difference Result 531 states and 780 transitions. [2023-12-02 08:26:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 08:26:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2023-12-02 08:26:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:26:39,759 INFO L225 Difference]: With dead ends: 531 [2023-12-02 08:26:39,759 INFO L226 Difference]: Without dead ends: 306 [2023-12-02 08:26:39,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 64.1s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 08:26:39,761 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 83 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 2358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:26:39,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 3538 Invalid, 2358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 08:26:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-02 08:26:39,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 266. [2023-12-02 08:26:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 174 states have internal predecessors, (236), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-02 08:26:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2023-12-02 08:26:39,835 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 71 [2023-12-02 08:26:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:26:39,836 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2023-12-02 08:26:39,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 08:26:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2023-12-02 08:26:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 08:26:39,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:26:39,839 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:26:39,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:26:40,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-02 08:26:40,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:26:40,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:26:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1201895534, now seen corresponding path program 1 times [2023-12-02 08:26:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:26:40,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339080195] [2023-12-02 08:26:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:26:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:26:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:26:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:26:40,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:26:40,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339080195] [2023-12-02 08:26:40,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339080195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:26:40,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:26:40,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:26:40,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091439721] [2023-12-02 08:26:40,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:26:40,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:26:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:26:40,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:26:40,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:26:40,135 INFO L87 Difference]: Start difference. First operand 266 states and 375 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 08:26:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:26:40,357 INFO L93 Difference]: Finished difference Result 625 states and 914 transitions. [2023-12-02 08:26:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:26:40,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2023-12-02 08:26:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:26:40,361 INFO L225 Difference]: With dead ends: 625 [2023-12-02 08:26:40,361 INFO L226 Difference]: Without dead ends: 383 [2023-12-02 08:26:40,363 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 08:26:40,364 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 55 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:26:40,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 469 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 08:26:40,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-12-02 08:26:40,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 378. [2023-12-02 08:26:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 258 states have (on average 1.441860465116279) internal successors, (372), 261 states have internal predecessors, (372), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-02 08:26:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2023-12-02 08:26:40,494 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 76 [2023-12-02 08:26:40,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:26:40,494 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2023-12-02 08:26:40,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 08:26:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2023-12-02 08:26:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 08:26:40,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:26:40,497 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:26:40,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 08:26:40,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:26:40,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:26:40,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1329401925, now seen corresponding path program 1 times [2023-12-02 08:26:40,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:26:40,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514493642] [2023-12-02 08:26:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:26:40,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:26:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:26:40,634 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 08:26:40,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:26:40,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514493642] [2023-12-02 08:26:40,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514493642] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:26:40,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853650893] [2023-12-02 08:26:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:26:40,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:26:40,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:26:40,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:26:40,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 08:26:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:26:40,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:26:40,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:26:40,943 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 08:26:40,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:26:40,994 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 08:26:40,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853650893] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:26:40,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [474854697] [2023-12-02 08:26:40,998 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-12-02 08:26:40,998 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:26:40,999 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:26:40,999 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:26:40,999 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:27:35,429 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 08:27:35,594 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 478 for LOIs [2023-12-02 08:27:37,705 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:27:58,675 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 478 DAG size of output: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:28:08,191 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 508 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:29:13,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [474854697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:13,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:29:13,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 08:29:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272587673] [2023-12-02 08:29:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:13,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 08:29:13,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:13,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 08:29:13,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 08:29:13,123 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 08:29:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:27,288 INFO L93 Difference]: Finished difference Result 772 states and 1175 transitions. [2023-12-02 08:29:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 08:29:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2023-12-02 08:29:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:27,292 INFO L225 Difference]: With dead ends: 772 [2023-12-02 08:29:27,292 INFO L226 Difference]: Without dead ends: 457 [2023-12-02 08:29:27,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 95.4s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 08:29:27,295 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 73 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:27,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 3611 Invalid, 2771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-02 08:29:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-12-02 08:29:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 392. [2023-12-02 08:29:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 270 states have (on average 1.4407407407407407) internal successors, (389), 273 states have internal predecessors, (389), 96 states have call successors, (96), 25 states have call predecessors, (96), 25 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-02 08:29:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 580 transitions. [2023-12-02 08:29:27,407 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 580 transitions. Word has length 77 [2023-12-02 08:29:27,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:27,408 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 580 transitions. [2023-12-02 08:29:27,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 08:29:27,408 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 580 transitions. [2023-12-02 08:29:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 08:29:27,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:27,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:27,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 08:29:27,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 08:29:27,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:29:27,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:27,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1708304300, now seen corresponding path program 1 times [2023-12-02 08:29:27,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:27,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435970896] [2023-12-02 08:29:27,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:27,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:27,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:27,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435970896] [2023-12-02 08:29:27,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435970896] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:27,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816123967] [2023-12-02 08:29:27,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:27,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:27,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:27,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:27,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 08:29:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:28,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:29:28,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:28,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:29:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:29:28,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816123967] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:29:28,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1573732836] [2023-12-02 08:29:28,184 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2023-12-02 08:29:28,185 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:29:28,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:29:28,185 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:29:28,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:31:25,816 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 08:31:25,996 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 545 for LOIs [2023-12-02 08:31:28,058 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 554 for LOIs [2023-12-02 08:31:29,869 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 469 for LOIs [2023-12-02 08:31:30,791 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 08:31:30,962 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:32:27,598 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 584 DAG size of output: 575 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:33:18,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1573732836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:33:18,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:33:18,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 08:33:18,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478285086] [2023-12-02 08:33:18,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:33:18,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 08:33:18,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:33:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 08:33:18,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 08:33:18,211 INFO L87 Difference]: Start difference. First operand 392 states and 580 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 08:33:40,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:33:40,704 INFO L93 Difference]: Finished difference Result 797 states and 1210 transitions. [2023-12-02 08:33:40,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 08:33:40,704 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2023-12-02 08:33:40,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:33:40,707 INFO L225 Difference]: With dead ends: 797 [2023-12-02 08:33:40,707 INFO L226 Difference]: Without dead ends: 482 [2023-12-02 08:33:40,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 107.2s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 08:33:40,709 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 87 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 3566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:33:40,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3827 Invalid, 3566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 22.1s Time] [2023-12-02 08:33:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-12-02 08:33:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 428. [2023-12-02 08:33:40,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 300 states have (on average 1.4366666666666668) internal successors, (431), 303 states have internal predecessors, (431), 99 states have call successors, (99), 28 states have call predecessors, (99), 28 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-02 08:33:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 628 transitions. [2023-12-02 08:33:40,864 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 628 transitions. Word has length 80 [2023-12-02 08:33:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:33:40,864 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 628 transitions. [2023-12-02 08:33:40,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 08:33:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 628 transitions. [2023-12-02 08:33:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 08:33:40,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:33:40,866 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:33:40,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 08:33:41,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:33:41,067 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:33:41,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:33:41,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1110813844, now seen corresponding path program 1 times [2023-12-02 08:33:41,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:33:41,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8518592] [2023-12-02 08:33:41,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:33:41,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:33:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:33:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:33:41,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:33:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8518592] [2023-12-02 08:33:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8518592] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:33:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258747326] [2023-12-02 08:33:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:33:41,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:33:41,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:33:41,163 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:33:41,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 08:33:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:33:41,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:33:41,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:33:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:33:41,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:33:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 08:33:41,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258747326] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:33:41,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2058213374] [2023-12-02 08:33:41,530 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 08:33:41,530 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:33:41,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:33:41,530 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:33:41,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:34:37,642 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 08:34:37,802 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 08:34:37,970 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:36:10,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2058213374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:36:10,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:36:10,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 08:36:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585984904] [2023-12-02 08:36:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:36:10,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 08:36:10,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:36:10,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 08:36:10,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 08:36:10,689 INFO L87 Difference]: Start difference. First operand 428 states and 628 transitions. Second operand has 32 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 08:36:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:36:21,388 INFO L93 Difference]: Finished difference Result 811 states and 1225 transitions. [2023-12-02 08:36:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 08:36:21,388 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 79 [2023-12-02 08:36:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:36:21,392 INFO L225 Difference]: With dead ends: 811 [2023-12-02 08:36:21,392 INFO L226 Difference]: Without dead ends: 496 [2023-12-02 08:36:21,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 92.7s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 08:36:21,394 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 228 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 08:36:21,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 3692 Invalid, 2581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 08:36:21,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-02 08:36:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 448. [2023-12-02 08:36:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 320 states have (on average 1.440625) internal successors, (461), 323 states have internal predecessors, (461), 99 states have call successors, (99), 28 states have call predecessors, (99), 28 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-02 08:36:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 658 transitions. [2023-12-02 08:36:21,564 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 658 transitions. Word has length 79 [2023-12-02 08:36:21,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:36:21,564 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 658 transitions. [2023-12-02 08:36:21,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.875) internal successors, (45), 23 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 08:36:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 658 transitions. [2023-12-02 08:36:21,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 08:36:21,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:36:21,567 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:36:21,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 08:36:21,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 08:36:21,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:36:21,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:36:21,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1932018235, now seen corresponding path program 1 times [2023-12-02 08:36:21,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:36:21,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381303157] [2023-12-02 08:36:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:36:21,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:36:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:36:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:36:21,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:36:21,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381303157] [2023-12-02 08:36:21,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381303157] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:36:21,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199555402] [2023-12-02 08:36:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:36:21,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:36:21,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:36:21,914 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:36:21,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb6616e2-5ea5-4a71-b5ae-e626b83c17f5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 08:36:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:36:22,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:36:22,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:36:22,214 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:36:22,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:36:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 08:36:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199555402] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:36:22,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1739994212] [2023-12-02 08:36:22,273 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-12-02 08:36:22,273 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:36:22,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:36:22,274 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:36:22,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:37:08,674 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 08:37:08,835 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 478 for LOIs [2023-12-02 08:37:10,949 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 274 for LOIs [2023-12-02 08:37:15,298 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2023-12-02 08:37:15,486 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 272 for LOIs [2023-12-02 08:37:26,738 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 231 for LOIs [2023-12-02 08:37:26,884 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 251 for LOIs [2023-12-02 08:37:27,173 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2023-12-02 08:37:27,369 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 230 for LOIs [2023-12-02 08:37:27,499 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:37:47,728 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 478 DAG size of output: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 08:37:56,946 WARN L293 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 508 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)