./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/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_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/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_71eeb177-f38e-4cac-9e0d-07f56db53027/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 15275a4436f6ed835fc824ec788a3589ee34ef53cd98082c25cb994e481acd9a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:58:07,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:58:07,640 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:58:07,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:58:07,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:58:07,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:58:07,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:58:07,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:58:07,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:58:07,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:58:07,676 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:58:07,676 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:58:07,677 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:58:07,677 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:58:07,678 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:58:07,678 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:58:07,678 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:58:07,679 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:58:07,679 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:58:07,680 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:58:07,681 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:58:07,684 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:58:07,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:58:07,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:58:07,686 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:58:07,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:58:07,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:58:07,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:58:07,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:58:07,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:58:07,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:58:07,688 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:58:07,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:58:07,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:58:07,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:58:07,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:58:07,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:58:07,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:58:07,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:58:07,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:58:07,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:58:07,691 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:58:07,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:58:07,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:58:07,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:58:07,691 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:58:07,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:58:07,692 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_71eeb177-f38e-4cac-9e0d-07f56db53027/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15275a4436f6ed835fc824ec788a3589ee34ef53cd98082c25cb994e481acd9a [2023-12-02 17:58:07,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:58:07,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:58:07,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:58:07,948 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:58:07,948 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:58:07,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c [2023-12-02 17:58:10,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:58:10,920 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:58:10,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c [2023-12-02 17:58:10,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/data/f9b685884/575187a2e039440aa266aad212d89fce/FLAG11bb757bd [2023-12-02 17:58:10,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/data/f9b685884/575187a2e039440aa266aad212d89fce [2023-12-02 17:58:10,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:58:10,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:58:10,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:58:10,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:58:10,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:58:10,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:58:10" (1/1) ... [2023-12-02 17:58:10,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6bd798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10, skipping insertion in model container [2023-12-02 17:58:10,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:58:10" (1/1) ... [2023-12-02 17:58:11,031 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:58:11,248 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_71eeb177-f38e-4cac-9e0d-07f56db53027/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c[7858,7871] [2023-12-02 17:58:11,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:58:11,491 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:58:11,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 17:58:11,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [363] [2023-12-02 17:58:11,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [407] [2023-12-02 17:58:11,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [416] [2023-12-02 17:58:11,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [563] [2023-12-02 17:58:11,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [598] [2023-12-02 17:58:11,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [964] [2023-12-02 17:58:11,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1180] [2023-12-02 17:58:11,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1545] [2023-12-02 17:58:11,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1562] [2023-12-02 17:58:11,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2629] [2023-12-02 17:58:11,517 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_71eeb177-f38e-4cac-9e0d-07f56db53027/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c[7858,7871] [2023-12-02 17:58:11,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:58:11,616 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:58:11,621 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:58:11,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11 WrapperNode [2023-12-02 17:58:11,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:58:11,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:58:11,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:58:11,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:58:11,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,709 INFO L138 Inliner]: procedures = 132, calls = 223, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 947 [2023-12-02 17:58:11,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:58:11,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:58:11,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:58:11,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:58:11,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:58:11,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:58:11,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:58:11,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:58:11,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (1/1) ... [2023-12-02 17:58:11,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:58:11,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:58:11,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:58:11,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:58:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 17:58:11,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 17:58:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 17:58:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 17:58:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 17:58:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 17:58:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 17:58:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 17:58:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 17:58:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 17:58:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 17:58:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 17:58:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 17:58:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 17:58:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 17:58:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 17:58:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 17:58:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 17:58:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 17:58:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 17:58:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 17:58:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 17:58:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 17:58:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 17:58:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 17:58:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:58:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 17:58:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 17:58:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 17:58:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 17:58:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 17:58:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 17:58:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 17:58:11,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 17:58:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 17:58:11,868 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 17:58:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 17:58:11,868 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 17:58:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 17:58:11,869 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 17:58:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 17:58:11,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 17:58:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 17:58:11,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 17:58:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 17:58:11,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 17:58:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:58:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 17:58:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 17:58:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:58:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:58:12,088 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:58:12,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:58:12,767 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:58:13,203 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:58:13,203 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:58:13,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:58:13 BoogieIcfgContainer [2023-12-02 17:58:13,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:58:13,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:58:13,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:58:13,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:58:13,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:58:10" (1/3) ... [2023-12-02 17:58:13,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7477b466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:58:13, skipping insertion in model container [2023-12-02 17:58:13,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:11" (2/3) ... [2023-12-02 17:58:13,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7477b466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:58:13, skipping insertion in model container [2023-12-02 17:58:13,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:58:13" (3/3) ... [2023-12-02 17:58:13,214 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product30.cil.c [2023-12-02 17:58:13,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:58:13,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:58:13,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:58:13,293 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;@145d0cc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:58:13,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:58:13,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-02 17:58:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 17:58:13,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:13,313 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 17:58:13,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:58:13,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:13,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1115999335, now seen corresponding path program 1 times [2023-12-02 17:58:13,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:13,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102210514] [2023-12-02 17:58:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:13,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:13,652 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 17:58:13,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:13,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102210514] [2023-12-02 17:58:13,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102210514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:58:13,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:58:13,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:58:13,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758909685] [2023-12-02 17:58:13,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:58:13,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:58:13,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:58:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:58:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:58:13,693 INFO L87 Difference]: Start difference. First operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) 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 17:58:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:13,816 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2023-12-02 17:58:13,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:58:13,818 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 17:58:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:13,830 INFO L225 Difference]: With dead ends: 295 [2023-12-02 17:58:13,830 INFO L226 Difference]: Without dead ends: 186 [2023-12-02 17:58:13,835 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 17:58:13,839 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:13,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:58:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-02 17:58:13,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-12-02 17:58:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 112 states have internal predecessors, (142), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 17:58:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 247 transitions. [2023-12-02 17:58:13,897 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 247 transitions. Word has length 64 [2023-12-02 17:58:13,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:58:13,899 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 247 transitions. [2023-12-02 17:58:13,899 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 17:58:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 247 transitions. [2023-12-02 17:58:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 17:58:13,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:13,903 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 17:58:13,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:58:13,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:58:13,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:13,905 INFO L85 PathProgramCache]: Analyzing trace with hash 924189626, now seen corresponding path program 1 times [2023-12-02 17:58:13,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:13,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992734736] [2023-12-02 17:58:13,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:13,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:14,091 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 17:58:14,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:14,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992734736] [2023-12-02 17:58:14,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992734736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:58:14,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:58:14,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:58:14,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150441227] [2023-12-02 17:58:14,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:58:14,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:58:14,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:58:14,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:58:14,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:58:14,095 INFO L87 Difference]: Start difference. First operand 186 states and 247 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 17:58:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:14,199 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2023-12-02 17:58:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:58:14,199 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 17:58:14,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:14,202 INFO L225 Difference]: With dead ends: 291 [2023-12-02 17:58:14,202 INFO L226 Difference]: Without dead ends: 188 [2023-12-02 17:58:14,204 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 17:58:14,206 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:14,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:58:14,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-02 17:58:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-02 17:58:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 17:58:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2023-12-02 17:58:14,227 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 65 [2023-12-02 17:58:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:58:14,227 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2023-12-02 17:58:14,228 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 17:58:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2023-12-02 17:58:14,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 17:58:14,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:14,231 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 17:58:14,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:58:14,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:58:14,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1187153342, now seen corresponding path program 1 times [2023-12-02 17:58:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:14,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875947901] [2023-12-02 17:58:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:14,368 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 17:58:14,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:14,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875947901] [2023-12-02 17:58:14,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875947901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:58:14,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:58:14,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:58:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552586820] [2023-12-02 17:58:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:58:14,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:58:14,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:58:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:58:14,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:58:14,371 INFO L87 Difference]: Start difference. First operand 188 states and 249 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 17:58:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:14,475 INFO L93 Difference]: Finished difference Result 406 states and 557 transitions. [2023-12-02 17:58:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:58:14,476 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 17:58:14,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:14,479 INFO L225 Difference]: With dead ends: 406 [2023-12-02 17:58:14,479 INFO L226 Difference]: Without dead ends: 236 [2023-12-02 17:58:14,480 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 17:58:14,482 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 57 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:14,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 434 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:58:14,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-02 17:58:14,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2023-12-02 17:58:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 143 states have (on average 1.3776223776223777) internal successors, (197), 146 states have internal predecessors, (197), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-02 17:58:14,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 324 transitions. [2023-12-02 17:58:14,505 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 324 transitions. Word has length 70 [2023-12-02 17:58:14,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:58:14,505 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 324 transitions. [2023-12-02 17:58:14,506 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 17:58:14,506 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 324 transitions. [2023-12-02 17:58:14,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 17:58:14,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:58:14,509 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 17:58:14,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:58:14,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:58:14,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:58:14,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1807159183, now seen corresponding path program 1 times [2023-12-02 17:58:14,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:58:14,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011730097] [2023-12-02 17:58:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:14,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:58:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:14,679 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 17:58:14,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:58:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011730097] [2023-12-02 17:58:14,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011730097] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:58:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021826312] [2023-12-02 17:58:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:58:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:58:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:58:14,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:58:14,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:58:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:58:15,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:58:15,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:58:15,108 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 17:58:15,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:58:15,186 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 17:58:15,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021826312] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:58:15,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1659921293] [2023-12-02 17:58:15,210 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 17:58:15,210 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:58:15,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:58:15,220 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:58:15,220 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:58:58,972 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:58:59,152 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 17:58:59,380 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:59:55,847 WARN L293 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 512 DAG size of output: 512 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:00:10,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1659921293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:00:10,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:00:10,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 18:00:10,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418781724] [2023-12-02 18:00:10,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:00:10,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 18:00:10,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:00:10,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 18:00:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 18:00:10,798 INFO L87 Difference]: Start difference. First operand 231 states and 324 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 18:00:25,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:00:25,319 INFO L93 Difference]: Finished difference Result 507 states and 744 transitions. [2023-12-02 18:00:25,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 18:00:25,320 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 18:00:25,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:00:25,322 INFO L225 Difference]: With dead ends: 507 [2023-12-02 18:00:25,322 INFO L226 Difference]: Without dead ends: 294 [2023-12-02 18:00:25,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 74.7s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 18:00:25,324 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 109 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:00:25,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 3261 Invalid, 2528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-02 18:00:25,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-02 18:00:25,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 254. [2023-12-02 18:00:25,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 165 states have (on average 1.393939393939394) internal successors, (230), 168 states have internal predecessors, (230), 64 states have call successors, (64), 24 states have call predecessors, (64), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-02 18:00:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2023-12-02 18:00:25,382 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 71 [2023-12-02 18:00:25,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:00:25,383 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2023-12-02 18:00:25,383 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 18:00:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2023-12-02 18:00:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 18:00:25,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:00:25,385 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 18:00:25,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:00:25,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:00:25,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:00:25,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:00:25,586 INFO L85 PathProgramCache]: Analyzing trace with hash -522060306, now seen corresponding path program 1 times [2023-12-02 18:00:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:00:25,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401202282] [2023-12-02 18:00:25,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:00:25,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:00:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:00:25,676 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 18:00:25,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:00:25,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401202282] [2023-12-02 18:00:25,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401202282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:00:25,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:00:25,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:00:25,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858742532] [2023-12-02 18:00:25,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:00:25,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:00:25,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:00:25,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:00:25,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:00:25,679 INFO L87 Difference]: Start difference. First operand 254 states and 357 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 18:00:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:00:25,881 INFO L93 Difference]: Finished difference Result 601 states and 878 transitions. [2023-12-02 18:00:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:00:25,882 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 18:00:25,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:00:25,885 INFO L225 Difference]: With dead ends: 601 [2023-12-02 18:00:25,885 INFO L226 Difference]: Without dead ends: 371 [2023-12-02 18:00:25,887 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 18:00:25,888 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 55 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:00:25,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 437 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:00:25,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-02 18:00:25,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 366. [2023-12-02 18:00:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 252 states have (on average 1.4523809523809523) internal successors, (366), 255 states have internal predecessors, (366), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-02 18:00:25,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 543 transitions. [2023-12-02 18:00:25,985 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 543 transitions. Word has length 76 [2023-12-02 18:00:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:00:25,986 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 543 transitions. [2023-12-02 18:00:25,986 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 18:00:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 543 transitions. [2023-12-02 18:00:25,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 18:00:25,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:00:25,989 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 18:00:25,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 18:00:25,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:00:25,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:00:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1984334372, now seen corresponding path program 1 times [2023-12-02 18:00:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:00:25,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831425194] [2023-12-02 18:00:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:00:25,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:00:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:00:26,090 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 18:00:26,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:00:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831425194] [2023-12-02 18:00:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831425194] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:00:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693801959] [2023-12-02 18:00:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:00:26,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:00:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:00:26,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:00:26,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 18:00:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:00:26,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:00:26,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:00:26,390 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 18:00:26,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:00:26,439 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 18:00:26,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693801959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:00:26,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1068043358] [2023-12-02 18:00:26,443 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-12-02 18:00:26,443 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:00:26,444 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:00:26,444 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:00:26,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:01:20,078 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 18:01:20,237 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 492 for LOIs [2023-12-02 18:01:22,376 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:01:43,539 WARN L293 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 492 DAG size of output: 493 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:53,224 WARN L293 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 522 DAG size of output: 518 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:33,962 WARN L293 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 515 DAG size of output: 515 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:49,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1068043358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:02:49,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:02:49,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 18:02:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282671988] [2023-12-02 18:02:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:02:49,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 18:02:49,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:02:49,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 18:02:49,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 18:02:49,997 INFO L87 Difference]: Start difference. First operand 366 states and 543 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 18:03:06,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:03:06,428 INFO L93 Difference]: Finished difference Result 748 states and 1139 transitions. [2023-12-02 18:03:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 18:03:06,429 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 18:03:06,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:03:06,432 INFO L225 Difference]: With dead ends: 748 [2023-12-02 18:03:06,432 INFO L226 Difference]: Without dead ends: 445 [2023-12-02 18:03:06,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 91.6s TimeCoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 18:03:06,433 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 74 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3443 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:03:06,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3443 Invalid, 2753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2743 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2023-12-02 18:03:06,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-12-02 18:03:06,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 380. [2023-12-02 18:03:06,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 264 states have (on average 1.4507575757575757) internal successors, (383), 267 states have internal predecessors, (383), 90 states have call successors, (90), 25 states have call predecessors, (90), 25 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-02 18:03:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 562 transitions. [2023-12-02 18:03:06,543 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 562 transitions. Word has length 77 [2023-12-02 18:03:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:03:06,543 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 562 transitions. [2023-12-02 18:03:06,544 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 18:03:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 562 transitions. [2023-12-02 18:03:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 18:03:06,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:03:06,546 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 18:03:06,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 18:03:06,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:03:06,747 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:03:06,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:03:06,748 INFO L85 PathProgramCache]: Analyzing trace with hash 960814288, now seen corresponding path program 1 times [2023-12-02 18:03:06,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:03:06,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542084263] [2023-12-02 18:03:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:03:06,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:03:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:03:06,900 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 18:03:06,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:03:06,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542084263] [2023-12-02 18:03:06,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542084263] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:03:06,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292345501] [2023-12-02 18:03:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:03:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:03:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:03:06,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:03:06,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 18:03:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:03:07,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:03:07,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:03:07,231 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 18:03:07,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:03:07,289 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 18:03:07,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292345501] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:03:07,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [436384597] [2023-12-02 18:03:07,293 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2023-12-02 18:03:07,293 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:03:07,294 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:03:07,294 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:03:07,294 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:05:12,657 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 18:05:12,819 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 559 for LOIs [2023-12-02 18:05:14,732 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 568 for LOIs [2023-12-02 18:05:16,591 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 483 for LOIs [2023-12-02 18:05:17,362 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 18:05:17,579 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:06:16,401 WARN L293 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 596 DAG size of output: 591 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:06:22,125 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 597 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:07:13,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [436384597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:07:13,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:07:13,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 18:07:13,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127197055] [2023-12-02 18:07:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:07:13,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 18:07:13,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:07:13,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 18:07:13,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:07:13,593 INFO L87 Difference]: Start difference. First operand 380 states and 562 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 18:07:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:07:37,926 INFO L93 Difference]: Finished difference Result 773 states and 1174 transitions. [2023-12-02 18:07:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 18:07:37,926 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 18:07:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:07:37,930 INFO L225 Difference]: With dead ends: 773 [2023-12-02 18:07:37,930 INFO L226 Difference]: Without dead ends: 470 [2023-12-02 18:07:37,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 119.3s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 18:07:37,933 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 58 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 3374 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-12-02 18:07:37,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3270 Invalid, 3384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3374 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2023-12-02 18:07:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-02 18:07:38,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 416. [2023-12-02 18:07:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 294 states have (on average 1.445578231292517) internal successors, (425), 297 states have internal predecessors, (425), 93 states have call successors, (93), 28 states have call predecessors, (93), 28 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-02 18:07:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 610 transitions. [2023-12-02 18:07:38,115 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 610 transitions. Word has length 80 [2023-12-02 18:07:38,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:07:38,116 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 610 transitions. [2023-12-02 18:07:38,116 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 18:07:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 610 transitions. [2023-12-02 18:07:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 18:07:38,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:07:38,118 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 18:07:38,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 18:07:38,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:07:38,319 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:07:38,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:07:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1375930400, now seen corresponding path program 1 times [2023-12-02 18:07:38,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:07:38,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770998816] [2023-12-02 18:07:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:07:38,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:07:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:07:38,459 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 18:07:38,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:07:38,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770998816] [2023-12-02 18:07:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770998816] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:07:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89532891] [2023-12-02 18:07:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:07:38,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:07:38,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:07:38,461 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:07:38,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:07:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:07:38,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:07:38,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:07:38,751 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 18:07:38,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:07:38,806 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 18:07:38,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89532891] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:07:38,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1644821863] [2023-12-02 18:07:38,809 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 18:07:38,809 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:07:38,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:07:38,810 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:07:38,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:08:39,481 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 18:08:39,644 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 18:08:39,862 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:09:37,950 WARN L293 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 519 DAG size of output: 519 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:10:24,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1644821863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:10:24,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:10:24,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 18:10:24,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163041558] [2023-12-02 18:10:24,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:10:24,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 18:10:24,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:10:24,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 18:10:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 18:10:24,125 INFO L87 Difference]: Start difference. First operand 416 states and 610 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 18:10:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:10:40,383 INFO L93 Difference]: Finished difference Result 787 states and 1189 transitions. [2023-12-02 18:10:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 18:10:40,384 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 18:10:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:10:40,388 INFO L225 Difference]: With dead ends: 787 [2023-12-02 18:10:40,388 INFO L226 Difference]: Without dead ends: 484 [2023-12-02 18:10:40,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 107.8s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:10:40,390 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 84 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:10:40,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 3552 Invalid, 2817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-12-02 18:10:40,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-12-02 18:10:40,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 436. [2023-12-02 18:10:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 314 states have (on average 1.4490445859872612) internal successors, (455), 317 states have internal predecessors, (455), 93 states have call successors, (93), 28 states have call predecessors, (93), 28 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-02 18:10:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 640 transitions. [2023-12-02 18:10:40,557 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 640 transitions. Word has length 79 [2023-12-02 18:10:40,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:10:40,557 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 640 transitions. [2023-12-02 18:10:40,558 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 18:10:40,558 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 640 transitions. [2023-12-02 18:10:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 18:10:40,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:10:40,560 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 18:10:40,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 18:10:40,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:10:40,760 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:10:40,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:10:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash 915057401, now seen corresponding path program 1 times [2023-12-02 18:10:40,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:10:40,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462180773] [2023-12-02 18:10:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:40,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:10:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:10:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 18:10:40,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:10:40,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462180773] [2023-12-02 18:10:40,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462180773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:10:40,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:10:40,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:10:40,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778236928] [2023-12-02 18:10:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:10:40,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:10:40,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:10:40,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:10:40,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:10:40,956 INFO L87 Difference]: Start difference. First operand 436 states and 640 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 18:10:41,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:10:41,318 INFO L93 Difference]: Finished difference Result 567 states and 792 transitions. [2023-12-02 18:10:41,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:10:41,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 82 [2023-12-02 18:10:41,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:10:41,323 INFO L225 Difference]: With dead ends: 567 [2023-12-02 18:10:41,323 INFO L226 Difference]: Without dead ends: 466 [2023-12-02 18:10:41,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 18:10:41,325 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 123 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:10:41,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 302 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:10:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-12-02 18:10:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2023-12-02 18:10:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 330 states have (on average 1.4272727272727272) internal successors, (471), 333 states have internal predecessors, (471), 99 states have call successors, (99), 37 states have call predecessors, (99), 36 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-02 18:10:41,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 668 transitions. [2023-12-02 18:10:41,605 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 668 transitions. Word has length 82 [2023-12-02 18:10:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:10:41,605 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 668 transitions. [2023-12-02 18:10:41,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 18:10:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 668 transitions. [2023-12-02 18:10:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 18:10:41,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:10:41,609 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:10:41,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 18:10:41,609 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:10:41,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:10:41,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1052554513, now seen corresponding path program 1 times [2023-12-02 18:10:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:10:41,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712615325] [2023-12-02 18:10:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:10:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:10:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 18:10:41,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:10:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712615325] [2023-12-02 18:10:41,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712615325] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:10:41,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809246202] [2023-12-02 18:10:41,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:10:41,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:10:41,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:10:41,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:10:41,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71eeb177-f38e-4cac-9e0d-07f56db53027/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 18:10:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:10:42,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:10:42,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:10:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 18:10:42,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:10:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-02 18:10:42,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809246202] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:10:42,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [360235154] [2023-12-02 18:10:42,439 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2023-12-02 18:10:42,440 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:10:42,440 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:10:42,440 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:10:42,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:11:40,918 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 18:11:41,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 494 for LOIs [2023-12-02 18:11:43,282 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:12:05,284 WARN L293 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 494 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:12:15,289 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 524 DAG size of output: 520 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)