./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product29.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_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/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_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/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_cfaca444-e4e2-442f-910e-8f8a2429c6cc/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 a59be100f0df5b45ec217b714193edff4cbaee7a030bd6a056d7c0737b59e84e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:47:13,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:47:13,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:47:13,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:47:13,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:47:13,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:47:13,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:47:13,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:47:13,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:47:13,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:47:13,646 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:47:13,647 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:47:13,647 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:47:13,648 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:47:13,648 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:47:13,649 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:47:13,649 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:47:13,650 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:47:13,650 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:47:13,651 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:47:13,651 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:47:13,652 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:47:13,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:47:13,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:47:13,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:47:13,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:47:13,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:47:13,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:47:13,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:47:13,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:47:13,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:47:13,657 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:47:13,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:47:13,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:47:13,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:47:13,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:47:13,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:47:13,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:47:13,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:47:13,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:47:13,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:47:13,660 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:47:13,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:47:13,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:47:13,661 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:47:13,661 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:47:13,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:47:13,661 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_cfaca444-e4e2-442f-910e-8f8a2429c6cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a59be100f0df5b45ec217b714193edff4cbaee7a030bd6a056d7c0737b59e84e [2023-12-02 13:47:13,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:47:13,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:47:13,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:47:13,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:47:13,923 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:47:13,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec3_product29.cil.c [2023-12-02 13:47:16,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:47:17,154 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:47:17,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/sv-benchmarks/c/product-lines/email_spec3_product29.cil.c [2023-12-02 13:47:17,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/data/df877e704/41bd00b90aeb45d8844f9d324ec5a6d8/FLAG2d252db9f [2023-12-02 13:47:17,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/data/df877e704/41bd00b90aeb45d8844f9d324ec5a6d8 [2023-12-02 13:47:17,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:47:17,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:47:17,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:47:17,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:47:17,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:47:17,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:47:17" (1/1) ... [2023-12-02 13:47:17,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7622e1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:17, skipping insertion in model container [2023-12-02 13:47:17,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:47:17" (1/1) ... [2023-12-02 13:47:17,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:47:17,839 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_cfaca444-e4e2-442f-910e-8f8a2429c6cc/sv-benchmarks/c/product-lines/email_spec3_product29.cil.c[49640,49653] [2023-12-02 13:47:17,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:47:17,940 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:47:17,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-02 13:47:17,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [414] [2023-12-02 13:47:17,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1494] [2023-12-02 13:47:17,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1804] [2023-12-02 13:47:17,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2216] [2023-12-02 13:47:17,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2225] [2023-12-02 13:47:17,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2260] [2023-12-02 13:47:17,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2476] [2023-12-02 13:47:17,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2614] [2023-12-02 13:47:17,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2631] [2023-12-02 13:47:17,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3001] [2023-12-02 13:47:18,034 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_cfaca444-e4e2-442f-910e-8f8a2429c6cc/sv-benchmarks/c/product-lines/email_spec3_product29.cil.c[49640,49653] [2023-12-02 13:47:18,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:47:18,093 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:47:18,103 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:47:18,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18 WrapperNode [2023-12-02 13:47:18,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:47:18,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:47:18,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:47:18,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:47:18,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,202 INFO L138 Inliner]: procedures = 132, calls = 236, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 981 [2023-12-02 13:47:18,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:47:18,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:47:18,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:47:18,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:47:18,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:47:18,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:47:18,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:47:18,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:47:18,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (1/1) ... [2023-12-02 13:47:18,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:47:18,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:18,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:47:18,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:47:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 13:47:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 13:47:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 13:47:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 13:47:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 13:47:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 13:47:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 13:47:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 13:47:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 13:47:18,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 13:47:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:47:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:47:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:47:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:47:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 13:47:18,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 13:47:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:47:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:47:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 13:47:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 13:47:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 13:47:18,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 13:47:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:47:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:47:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:47:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 13:47:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 13:47:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:47:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:47:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:47:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 13:47:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 13:47:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 13:47:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 13:47:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 13:47:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 13:47:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:47:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:47:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-02 13:47:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-02 13:47:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:47:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:47:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:47:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:47:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 13:47:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 13:47:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 13:47:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 13:47:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:47:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:47:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 13:47:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 13:47:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:47:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:47:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:47:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:47:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:47:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:47:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:47:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 13:47:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 13:47:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:47:18,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:47:18,588 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:47:18,591 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:47:19,470 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:47:20,051 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:47:20,051 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:47:20,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:20 BoogieIcfgContainer [2023-12-02 13:47:20,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:47:20,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:47:20,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:47:20,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:47:20,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:47:17" (1/3) ... [2023-12-02 13:47:20,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2023a86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:20, skipping insertion in model container [2023-12-02 13:47:20,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:47:18" (2/3) ... [2023-12-02 13:47:20,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2023a86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:47:20, skipping insertion in model container [2023-12-02 13:47:20,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:47:20" (3/3) ... [2023-12-02 13:47:20,065 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product29.cil.c [2023-12-02 13:47:20,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:47:20,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:47:20,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:47:20,166 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;@20a2d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:47:20,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:47:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 131 states have internal predecessors, (162), 68 states have call successors, (68), 29 states have call predecessors, (68), 29 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-02 13:47:20,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 13:47:20,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:20,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:47:20,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:20,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 231439705, now seen corresponding path program 1 times [2023-12-02 13:47:20,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:20,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454251102] [2023-12-02 13:47:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:20,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:47:20,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:20,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454251102] [2023-12-02 13:47:20,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454251102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:20,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:47:20,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:47:20,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090727461] [2023-12-02 13:47:20,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:20,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:47:20,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:47:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:47:20,706 INFO L87 Difference]: Start difference. First operand has 223 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 131 states have internal predecessors, (162), 68 states have call successors, (68), 29 states have call predecessors, (68), 29 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 13:47:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:20,870 INFO L93 Difference]: Finished difference Result 353 states and 467 transitions. [2023-12-02 13:47:20,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:47:20,873 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 101 [2023-12-02 13:47:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:20,888 INFO L225 Difference]: With dead ends: 353 [2023-12-02 13:47:20,888 INFO L226 Difference]: Without dead ends: 219 [2023-12-02 13:47:20,913 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 13:47:20,917 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:20,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:47:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-02 13:47:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-12-02 13:47:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 122 states have (on average 1.278688524590164) internal successors, (156), 127 states have internal predecessors, (156), 68 states have call successors, (68), 29 states have call predecessors, (68), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 13:47:20,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 289 transitions. [2023-12-02 13:47:20,989 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 289 transitions. Word has length 101 [2023-12-02 13:47:20,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:20,991 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 289 transitions. [2023-12-02 13:47:20,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 13:47:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 289 transitions. [2023-12-02 13:47:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 13:47:20,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:20,998 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:47:20,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:47:20,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:21,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1921465384, now seen corresponding path program 1 times [2023-12-02 13:47:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:21,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523094482] [2023-12-02 13:47:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:21,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:47:21,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:21,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523094482] [2023-12-02 13:47:21,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523094482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:21,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:47:21,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:47:21,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635539102] [2023-12-02 13:47:21,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:21,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:47:21,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:21,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:47:21,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:47:21,259 INFO L87 Difference]: Start difference. First operand 219 states and 289 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 13:47:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:21,408 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2023-12-02 13:47:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:47:21,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 91 [2023-12-02 13:47:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:21,413 INFO L225 Difference]: With dead ends: 348 [2023-12-02 13:47:21,413 INFO L226 Difference]: Without dead ends: 221 [2023-12-02 13:47:21,416 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 13:47:21,418 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:21,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 501 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:47:21,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-02 13:47:21,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2023-12-02 13:47:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 129 states have internal predecessors, (158), 68 states have call successors, (68), 29 states have call predecessors, (68), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 13:47:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 291 transitions. [2023-12-02 13:47:21,448 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 291 transitions. Word has length 91 [2023-12-02 13:47:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:21,448 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 291 transitions. [2023-12-02 13:47:21,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 13:47:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 291 transitions. [2023-12-02 13:47:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 13:47:21,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:21,454 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:47:21,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:47:21,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:21,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:21,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1167524323, now seen corresponding path program 1 times [2023-12-02 13:47:21,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:21,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194940476] [2023-12-02 13:47:21,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:21,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:47:21,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:21,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194940476] [2023-12-02 13:47:21,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194940476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:21,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:47:21,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:47:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077151864] [2023-12-02 13:47:21,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:21,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:47:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:21,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:47:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:47:21,665 INFO L87 Difference]: Start difference. First operand 221 states and 291 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 13:47:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:21,806 INFO L93 Difference]: Finished difference Result 477 states and 649 transitions. [2023-12-02 13:47:21,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:47:21,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 107 [2023-12-02 13:47:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:21,810 INFO L225 Difference]: With dead ends: 477 [2023-12-02 13:47:21,810 INFO L226 Difference]: Without dead ends: 274 [2023-12-02 13:47:21,812 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 13:47:21,814 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 59 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:21,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 512 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:47:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-02 13:47:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 269. [2023-12-02 13:47:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 163 states have internal predecessors, (213), 82 states have call successors, (82), 29 states have call predecessors, (82), 28 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-02 13:47:21,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 374 transitions. [2023-12-02 13:47:21,843 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 374 transitions. Word has length 107 [2023-12-02 13:47:21,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 374 transitions. [2023-12-02 13:47:21,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 13:47:21,844 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 374 transitions. [2023-12-02 13:47:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 13:47:21,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:21,848 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:47:21,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:47:21,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:21,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:21,849 INFO L85 PathProgramCache]: Analyzing trace with hash 65976820, now seen corresponding path program 1 times [2023-12-02 13:47:21,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:21,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041496147] [2023-12-02 13:47:21,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:21,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:47:22,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:22,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041496147] [2023-12-02 13:47:22,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041496147] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:47:22,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279395891] [2023-12-02 13:47:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:22,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:22,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:22,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:47:22,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:47:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:22,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:47:22,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:47:22,659 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:47:22,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:47:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:47:22,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279395891] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:47:22,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1527771290] [2023-12-02 13:47:22,786 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2023-12-02 13:47:22,786 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:47:22,791 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:47:22,797 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:47:22,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:48:06,512 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:48:06,701 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 13:48:06,886 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:49:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1527771290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:49:14,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:49:14,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:49:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134507211] [2023-12-02 13:49:14,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:49:14,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:49:14,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:49:14,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:49:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:49:14,021 INFO L87 Difference]: Start difference. First operand 269 states and 374 transitions. Second operand has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-12-02 13:49:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:49:24,598 INFO L93 Difference]: Finished difference Result 585 states and 848 transitions. [2023-12-02 13:49:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:49:24,599 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 108 [2023-12-02 13:49:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:49:24,602 INFO L225 Difference]: With dead ends: 585 [2023-12-02 13:49:24,602 INFO L226 Difference]: Without dead ends: 334 [2023-12-02 13:49:24,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 67.1s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:49:24,604 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 58 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3721 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:49:24,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3721 Invalid, 2249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-12-02 13:49:24,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-02 13:49:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 292. [2023-12-02 13:49:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 185 states have internal predecessors, (246), 82 states have call successors, (82), 30 states have call predecessors, (82), 29 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-02 13:49:24,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 407 transitions. [2023-12-02 13:49:24,675 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 407 transitions. Word has length 108 [2023-12-02 13:49:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:49:24,675 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 407 transitions. [2023-12-02 13:49:24,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-12-02 13:49:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 407 transitions. [2023-12-02 13:49:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 13:49:24,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:49:24,678 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:49:24,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:49:24,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:49:24,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:49:24,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:49:24,885 INFO L85 PathProgramCache]: Analyzing trace with hash 820313823, now seen corresponding path program 1 times [2023-12-02 13:49:24,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:49:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491156397] [2023-12-02 13:49:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:49:24,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:49:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:49:24,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:49:24,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491156397] [2023-12-02 13:49:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491156397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:49:24,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:49:24,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:49:24,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353291090] [2023-12-02 13:49:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:49:24,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:49:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:49:24,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:49:24,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:49:24,964 INFO L87 Difference]: Start difference. First operand 292 states and 407 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 13:49:25,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:49:25,222 INFO L93 Difference]: Finished difference Result 687 states and 994 transitions. [2023-12-02 13:49:25,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:49:25,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2023-12-02 13:49:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:49:25,227 INFO L225 Difference]: With dead ends: 687 [2023-12-02 13:49:25,228 INFO L226 Difference]: Without dead ends: 419 [2023-12-02 13:49:25,229 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 13:49:25,230 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 57 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:49:25,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 515 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:49:25,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-12-02 13:49:25,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 414. [2023-12-02 13:49:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 271 states have (on average 1.4243542435424354) internal successors, (386), 276 states have internal predecessors, (386), 113 states have call successors, (113), 30 states have call predecessors, (113), 29 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-02 13:49:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 609 transitions. [2023-12-02 13:49:25,393 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 609 transitions. Word has length 102 [2023-12-02 13:49:25,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:49:25,394 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 609 transitions. [2023-12-02 13:49:25,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 13:49:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 609 transitions. [2023-12-02 13:49:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 13:49:25,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:49:25,398 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:49:25,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:49:25,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:49:25,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:49:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2107245771, now seen corresponding path program 1 times [2023-12-02 13:49:25,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:49:25,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952480171] [2023-12-02 13:49:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:49:25,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:49:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:25,557 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:49:25,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:49:25,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952480171] [2023-12-02 13:49:25,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952480171] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:49:25,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520816684] [2023-12-02 13:49:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:49:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:49:25,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:49:25,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:49:25,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:49:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:49:25,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:49:25,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:49:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:49:25,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:49:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:49:25,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520816684] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:49:25,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588321384] [2023-12-02 13:49:26,002 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2023-12-02 13:49:26,003 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:49:26,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:49:26,003 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:49:26,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:50:24,897 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:50:25,062 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 498 for LOIs [2023-12-02 13:50:27,274 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:50:49,123 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:50:59,298 WARN L293 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 528 DAG size of output: 523 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:52:04,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1588321384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:52:04,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:52:04,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:52:04,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388813418] [2023-12-02 13:52:04,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:52:04,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:52:04,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:52:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:52:04,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:52:04,959 INFO L87 Difference]: Start difference. First operand 414 states and 609 transitions. Second operand has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2023-12-02 13:52:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:52:19,037 INFO L93 Difference]: Finished difference Result 846 states and 1275 transitions. [2023-12-02 13:52:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:52:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 103 [2023-12-02 13:52:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:52:19,042 INFO L225 Difference]: With dead ends: 846 [2023-12-02 13:52:19,042 INFO L226 Difference]: Without dead ends: 495 [2023-12-02 13:52:19,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 97.7s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:52:19,045 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 176 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 3485 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:52:19,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 3485 Invalid, 2501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2023-12-02 13:52:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-12-02 13:52:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 428. [2023-12-02 13:52:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 283 states have (on average 1.4240282685512367) internal successors, (403), 288 states have internal predecessors, (403), 114 states have call successors, (114), 31 states have call predecessors, (114), 30 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-02 13:52:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 628 transitions. [2023-12-02 13:52:19,166 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 628 transitions. Word has length 103 [2023-12-02 13:52:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:52:19,166 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 628 transitions. [2023-12-02 13:52:19,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2023-12-02 13:52:19,167 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 628 transitions. [2023-12-02 13:52:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 13:52:19,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:52:19,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:52:19,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:52:19,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:52:19,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:52:19,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:52:19,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1976230709, now seen corresponding path program 1 times [2023-12-02 13:52:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:52:19,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623020116] [2023-12-02 13:52:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:52:19,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:52:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:52:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:52:19,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:52:19,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623020116] [2023-12-02 13:52:19,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623020116] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:52:19,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306313296] [2023-12-02 13:52:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:52:19,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:52:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:52:19,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:52:19,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:52:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:52:19,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:52:19,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:52:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:52:19,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:52:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:52:19,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306313296] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:52:19,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [636848065] [2023-12-02 13:52:19,939 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2023-12-02 13:52:19,940 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:52:19,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:52:19,941 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:52:19,941 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:53:58,999 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:53:59,163 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 615 for LOIs [2023-12-02 13:54:03,816 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 566 for LOIs [2023-12-02 13:54:05,679 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 489 for LOIs [2023-12-02 13:54:06,513 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 13:54:06,675 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:55:06,677 WARN L293 SmtUtils]: Spent 11.65s on a formula simplification. DAG size of input: 594 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:55:18,913 WARN L293 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 595 DAG size of output: 589 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:56:02,080 WARN L293 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 622 DAG size of output: 614 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:56:12,298 WARN L293 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 615 DAG size of output: 607 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:56:22,799 WARN L293 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 621 DAG size of output: 613 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:56:27,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [636848065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:56:27,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:56:27,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:56:27,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038162398] [2023-12-02 13:56:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:56:27,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:56:27,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:56:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:56:27,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:56:27,542 INFO L87 Difference]: Start difference. First operand 428 states and 628 transitions. Second operand has 33 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 10 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2023-12-02 13:56:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:56:56,344 INFO L93 Difference]: Finished difference Result 871 states and 1310 transitions. [2023-12-02 13:56:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:56:56,345 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 10 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 106 [2023-12-02 13:56:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:56:56,349 INFO L225 Difference]: With dead ends: 871 [2023-12-02 13:56:56,350 INFO L226 Difference]: Without dead ends: 520 [2023-12-02 13:56:56,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 140.8s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:56:56,352 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 60 mSDsluCounter, 4486 mSDsCounter, 0 mSdLazyCounter, 4016 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4723 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:56:56,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4723 Invalid, 4025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 4016 Invalid, 0 Unknown, 0 Unchecked, 28.4s Time] [2023-12-02 13:56:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-02 13:56:56,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 464. [2023-12-02 13:56:56,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 313 states have (on average 1.4217252396166133) internal successors, (445), 318 states have internal predecessors, (445), 117 states have call successors, (117), 34 states have call predecessors, (117), 33 states have return successors, (114), 113 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-02 13:56:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 676 transitions. [2023-12-02 13:56:56,533 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 676 transitions. Word has length 106 [2023-12-02 13:56:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:56:56,533 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 676 transitions. [2023-12-02 13:56:56,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 10 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2023-12-02 13:56:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 676 transitions. [2023-12-02 13:56:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 13:56:56,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:56:56,536 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:56:56,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:56:56,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:56:56,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:56:56,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:56:56,737 INFO L85 PathProgramCache]: Analyzing trace with hash -823153481, now seen corresponding path program 1 times [2023-12-02 13:56:56,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:56:56,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141178686] [2023-12-02 13:56:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:56:56,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:56:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:56:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:56:56,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:56:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141178686] [2023-12-02 13:56:56,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141178686] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:56:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022146300] [2023-12-02 13:56:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:56:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:56:56,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:56:56,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:56:56,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:56:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:56:57,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:56:57,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:56:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:56:57,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:56:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:56:57,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022146300] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:56:57,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [88748255] [2023-12-02 13:56:57,301 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2023-12-02 13:56:57,301 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:56:57,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:56:57,302 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:56:57,302 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:57:56,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 13:57:56,186 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 13:57:56,357 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:59:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [88748255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:59:37,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:59:37,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 13:59:37,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162193750] [2023-12-02 13:59:37,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:59:37,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 13:59:37,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:59:37,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 13:59:37,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:59:37,249 INFO L87 Difference]: Start difference. First operand 464 states and 676 transitions. Second operand has 32 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 23 states have internal predecessors, (56), 7 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-12-02 13:59:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:59:50,982 INFO L93 Difference]: Finished difference Result 885 states and 1325 transitions. [2023-12-02 13:59:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:59:50,983 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 23 states have internal predecessors, (56), 7 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 105 [2023-12-02 13:59:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:59:50,986 INFO L225 Difference]: With dead ends: 885 [2023-12-02 13:59:50,986 INFO L226 Difference]: Without dead ends: 534 [2023-12-02 13:59:50,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 100.9s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:59:50,988 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 106 mSDsluCounter, 3925 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 4155 SdHoareTripleChecker+Invalid, 2723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:59:50,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 4155 Invalid, 2723 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 13:59:50,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-02 13:59:51,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 484. [2023-12-02 13:59:51,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 333 states have (on average 1.4264264264264264) internal successors, (475), 338 states have internal predecessors, (475), 117 states have call successors, (117), 34 states have call predecessors, (117), 33 states have return successors, (114), 113 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-02 13:59:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 706 transitions. [2023-12-02 13:59:51,191 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 706 transitions. Word has length 105 [2023-12-02 13:59:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:59:51,192 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 706 transitions. [2023-12-02 13:59:51,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 23 states have internal predecessors, (56), 7 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-12-02 13:59:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 706 transitions. [2023-12-02 13:59:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 13:59:51,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:59:51,194 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:59:51,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:59:51,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 13:59:51,394 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:59:51,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:59:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1207735213, now seen corresponding path program 1 times [2023-12-02 13:59:51,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:59:51,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540041316] [2023-12-02 13:59:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:59:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:59:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:59:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:59:51,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:59:51,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540041316] [2023-12-02 13:59:51,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540041316] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:59:51,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898058972] [2023-12-02 13:59:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:59:51,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:59:51,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:59:51,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:59:51,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfaca444-e4e2-442f-910e-8f8a2429c6cc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:59:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:59:51,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 1177 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:59:51,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:59:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:59:51,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:59:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 13:59:51,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898058972] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:59:51,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1393842907] [2023-12-02 13:59:51,947 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2023-12-02 13:59:51,948 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:59:51,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:59:51,949 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:59:51,949 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:00:40,737 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2023-12-02 14:00:40,897 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 268 for LOIs [2023-12-02 14:00:45,023 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 239 for LOIs [2023-12-02 14:00:45,184 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 498 for LOIs [2023-12-02 14:00:47,315 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2023-12-02 14:00:51,673 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 271 for LOIs [2023-12-02 14:01:16,822 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 274 for LOIs [2023-12-02 14:01:17,051 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 280 for LOIs [2023-12-02 14:01:18,126 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2023-12-02 14:01:18,446 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 250 for LOIs [2023-12-02 14:01:18,592 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2023-12-02 14:01:18,714 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 230 for LOIs [2023-12-02 14:01:18,859 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 268 for LOIs [2023-12-02 14:01:19,156 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 244 for LOIs [2023-12-02 14:01:19,330 INFO L180 IcfgInterpreter]: Interpretation finished