./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/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_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/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_0e406673-ef6e-4da8-9305-d28e14823fc9/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 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:03:13,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:03:13,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:03:13,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:03:13,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:03:13,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:03:13,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:03:13,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:03:13,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:03:13,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:03:13,429 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:03:13,430 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:03:13,430 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:03:13,431 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:03:13,431 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:03:13,432 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:03:13,432 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:03:13,433 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:03:13,433 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:03:13,434 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:03:13,435 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:03:13,438 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:03:13,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:03:13,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:03:13,439 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:03:13,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:03:13,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:03:13,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:03:13,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:03:13,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:03:13,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:03:13,442 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:03:13,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:03:13,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:03:13,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:03:13,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:03:13,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:03:13,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:03:13,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:03:13,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:03:13,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:03:13,444 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:03:13,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:03:13,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:03:13,445 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:03:13,445 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:03:13,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:03:13,446 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_0e406673-ef6e-4da8-9305-d28e14823fc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9244be1607acf28cf3da39a66e263e3f7b227fe42ed993f89a6311649f8ded26 [2023-12-02 17:03:13,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:03:13,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:03:13,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:03:13,673 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:03:13,673 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:03:13,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2023-12-02 17:03:16,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:03:16,704 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:03:16,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c [2023-12-02 17:03:16,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/data/c762013ce/d3e82d92809e4026884ede41925ec2be/FLAG8706123e0 [2023-12-02 17:03:16,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/data/c762013ce/d3e82d92809e4026884ede41925ec2be [2023-12-02 17:03:16,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:03:16,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:03:16,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:03:16,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:03:16,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:03:16,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:03:16" (1/1) ... [2023-12-02 17:03:16,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493bd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:16, skipping insertion in model container [2023-12-02 17:03:16,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:03:16" (1/1) ... [2023-12-02 17:03:16,822 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:03:17,157 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_0e406673-ef6e-4da8-9305-d28e14823fc9/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2023-12-02 17:03:17,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:03:17,288 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:03:17,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-12-02 17:03:17,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [460] [2023-12-02 17:03:17,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [509] [2023-12-02 17:03:17,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [648] [2023-12-02 17:03:17,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [692] [2023-12-02 17:03:17,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1058] [2023-12-02 17:03:17,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1075] [2023-12-02 17:03:17,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1300] [2023-12-02 17:03:17,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1309] [2023-12-02 17:03:17,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1688] [2023-12-02 17:03:17,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1975] [2023-12-02 17:03:17,356 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_0e406673-ef6e-4da8-9305-d28e14823fc9/sv-benchmarks/c/product-lines/email_spec8_product29.cil.c[29472,29485] [2023-12-02 17:03:17,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:03:17,433 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:03:17,441 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:03:17,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17 WrapperNode [2023-12-02 17:03:17,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:03:17,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:03:17,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:03:17,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:03:17,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,533 INFO L138 Inliner]: procedures = 132, calls = 232, calls flagged for inlining = 56, calls inlined = 48, statements flattened = 966 [2023-12-02 17:03:17,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:03:17,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:03:17,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:03:17,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:03:17,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:03:17,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:03:17,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:03:17,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:03:17,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (1/1) ... [2023-12-02 17:03:17,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:03:17,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:03:17,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:03:17,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:03:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 17:03:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 17:03:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 17:03:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 17:03:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 17:03:17,716 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 17:03:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 17:03:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 17:03:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 17:03:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 17:03:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 17:03:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 17:03:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 17:03:17,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 17:03:17,717 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 17:03:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 17:03:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 17:03:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 17:03:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 17:03:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 17:03:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 17:03:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 17:03:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 17:03:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 17:03:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 17:03:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 17:03:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 17:03:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 17:03:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 17:03:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:03:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 17:03:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 17:03:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 17:03:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 17:03:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 17:03:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 17:03:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 17:03:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 17:03:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 17:03:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 17:03:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 17:03:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 17:03:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 17:03:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 17:03:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 17:03:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 17:03:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 17:03:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 17:03:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 17:03:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 17:03:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 17:03:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 17:03:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 17:03:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 17:03:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:03:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 17:03:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 17:03:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 17:03:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 17:03:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:03:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:03:17,914 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:03:17,917 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:03:18,670 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:03:19,254 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:03:19,254 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:03:19,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:03:19 BoogieIcfgContainer [2023-12-02 17:03:19,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:03:19,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:03:19,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:03:19,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:03:19,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:03:16" (1/3) ... [2023-12-02 17:03:19,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f44f900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:03:19, skipping insertion in model container [2023-12-02 17:03:19,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:03:17" (2/3) ... [2023-12-02 17:03:19,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f44f900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:03:19, skipping insertion in model container [2023-12-02 17:03:19,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:03:19" (3/3) ... [2023-12-02 17:03:19,264 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2023-12-02 17:03:19,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:03:19,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:03:19,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:03:19,346 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;@be0cc29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:03:19,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:03:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-02 17:03:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 17:03:19,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:03:19,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:03:19,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:03:19,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:03:19,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1202159575, now seen corresponding path program 1 times [2023-12-02 17:03:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:03:19,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752084664] [2023-12-02 17:03:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:19,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:03:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:03:19,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:03:19,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752084664] [2023-12-02 17:03:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752084664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:03:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:03:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:03:19,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523835337] [2023-12-02 17:03:19,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:03:19,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:03:19,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:03:19,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:03:19,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:03:19,769 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:03:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:03:19,907 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2023-12-02 17:03:19,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:03:19,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-12-02 17:03:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:03:19,923 INFO L225 Difference]: With dead ends: 334 [2023-12-02 17:03:19,923 INFO L226 Difference]: Without dead ends: 210 [2023-12-02 17:03:19,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:03:19,933 INFO L413 NwaCegarLoop]: 241 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, 241 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 17:03:19,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:03:19,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-02 17:03:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-12-02 17:03:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 17:03:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2023-12-02 17:03:20,001 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2023-12-02 17:03:20,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:03:20,003 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2023-12-02 17:03:20,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:03:20,003 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2023-12-02 17:03:20,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 17:03:20,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:03:20,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:03:20,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:03:20,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:03:20,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:03:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash 415411634, now seen corresponding path program 1 times [2023-12-02 17:03:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:03:20,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905994259] [2023-12-02 17:03:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:20,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:03:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:03:20,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:03:20,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905994259] [2023-12-02 17:03:20,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905994259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:03:20,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:03:20,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:03:20,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21465256] [2023-12-02 17:03:20,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:03:20,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:03:20,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:03:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:03:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:03:20,221 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:03:20,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:03:20,339 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2023-12-02 17:03:20,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:03:20,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2023-12-02 17:03:20,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:03:20,344 INFO L225 Difference]: With dead ends: 330 [2023-12-02 17:03:20,344 INFO L226 Difference]: Without dead ends: 212 [2023-12-02 17:03:20,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:03:20,346 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 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 17:03:20,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:03:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-02 17:03:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-12-02 17:03:20,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-02 17:03:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2023-12-02 17:03:20,369 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2023-12-02 17:03:20,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:03:20,370 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2023-12-02 17:03:20,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:03:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2023-12-02 17:03:20,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 17:03:20,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:03:20,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:03:20,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:03:20,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:03:20,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:03:20,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2137266748, now seen corresponding path program 1 times [2023-12-02 17:03:20,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:03:20,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430653599] [2023-12-02 17:03:20,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:03:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:03:20,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:03:20,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430653599] [2023-12-02 17:03:20,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430653599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:03:20,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:03:20,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:03:20,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897857727] [2023-12-02 17:03:20,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:03:20,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:03:20,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:03:20,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:03:20,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:03:20,522 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:03:20,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:03:20,643 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2023-12-02 17:03:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:03:20,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 17:03:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:03:20,646 INFO L225 Difference]: With dead ends: 459 [2023-12-02 17:03:20,646 INFO L226 Difference]: Without dead ends: 265 [2023-12-02 17:03:20,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:03:20,648 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 59 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:03:20,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 488 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:03:20,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-02 17:03:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2023-12-02 17:03:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:03:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2023-12-02 17:03:20,675 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2023-12-02 17:03:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:03:20,675 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2023-12-02 17:03:20,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:03:20,676 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2023-12-02 17:03:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 17:03:20,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:03:20,678 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:03:20,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:03:20,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:03:20,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:03:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2142435379, now seen corresponding path program 1 times [2023-12-02 17:03:20,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:03:20,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743296867] [2023-12-02 17:03:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:03:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:20,849 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:03:20,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:03:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743296867] [2023-12-02 17:03:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743296867] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:03:20,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999044389] [2023-12-02 17:03:20,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:03:20,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:03:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:03:20,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:03:20,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:03:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:03:21,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:03:21,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:03:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:03:21,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:03:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:03:21,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999044389] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:03:21,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [270194390] [2023-12-02 17:03:21,349 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 17:03:21,349 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:03:21,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:03:21,358 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:03:21,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:04:07,092 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:04:07,260 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2023-12-02 17:04:07,430 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:05:08,117 WARN L293 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 520 DAG size of output: 520 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:05:23,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [270194390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:05:23,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:05:23,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 17:05:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298979103] [2023-12-02 17:05:23,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:05:23,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 17:05:23,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:05:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 17:05:23,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:05:23,759 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 17:05:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:34,997 INFO L93 Difference]: Finished difference Result 567 states and 822 transitions. [2023-12-02 17:05:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 17:05:34,998 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2023-12-02 17:05:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:35,000 INFO L225 Difference]: With dead ends: 567 [2023-12-02 17:05:35,000 INFO L226 Difference]: Without dead ends: 325 [2023-12-02 17:05:35,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 76.3s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:05:35,002 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 114 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:35,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 3944 Invalid, 2536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-02 17:05:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-02 17:05:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 283. [2023-12-02 17:05:35,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 180 states have internal predecessors, (241), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 17:05:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 394 transitions. [2023-12-02 17:05:35,065 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 394 transitions. Word has length 78 [2023-12-02 17:05:35,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:35,066 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 394 transitions. [2023-12-02 17:05:35,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 17:05:35,066 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 394 transitions. [2023-12-02 17:05:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 17:05:35,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:35,068 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:05:35,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:05:35,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:05:35,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:05:35,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1998436080, now seen corresponding path program 1 times [2023-12-02 17:05:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:05:35,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112816544] [2023-12-02 17:05:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:35,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:05:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:05:35,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:05:35,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112816544] [2023-12-02 17:05:35,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112816544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:05:35,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:05:35,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:05:35,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37251827] [2023-12-02 17:05:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:05:35,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:05:35,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:05:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:05:35,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:05:35,363 INFO L87 Difference]: Start difference. First operand 283 states and 394 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:05:35,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:35,559 INFO L93 Difference]: Finished difference Result 669 states and 968 transitions. [2023-12-02 17:05:35,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:05:35,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2023-12-02 17:05:35,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:35,562 INFO L225 Difference]: With dead ends: 669 [2023-12-02 17:05:35,562 INFO L226 Difference]: Without dead ends: 410 [2023-12-02 17:05:35,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:05:35,564 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 57 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:35,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 488 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:05:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-02 17:05:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2023-12-02 17:05:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 267 states have (on average 1.4269662921348314) internal successors, (381), 271 states have internal predecessors, (381), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-02 17:05:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 596 transitions. [2023-12-02 17:05:35,666 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 596 transitions. Word has length 83 [2023-12-02 17:05:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:35,667 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 596 transitions. [2023-12-02 17:05:35,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:05:35,667 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 596 transitions. [2023-12-02 17:05:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 17:05:35,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:35,670 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:05:35,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:05:35,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:05:35,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:35,671 INFO L85 PathProgramCache]: Analyzing trace with hash 166936650, now seen corresponding path program 1 times [2023-12-02 17:05:35,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:05:35,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975383492] [2023-12-02 17:05:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:05:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:35,840 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 17:05:35,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:05:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975383492] [2023-12-02 17:05:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975383492] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:05:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141762052] [2023-12-02 17:05:35,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:35,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:05:35,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:05:35,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:05:35,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:05:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:36,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:05:36,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:05:36,174 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 17:05:36,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:05:36,228 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 17:05:36,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141762052] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:05:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1114479196] [2023-12-02 17:05:36,232 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 17:05:36,232 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:05:36,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:05:36,233 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:05:36,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:06:40,565 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:06:40,734 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 497 for LOIs [2023-12-02 17:06:43,120 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:07:05,375 WARN L293 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 497 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:07:15,886 WARN L293 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 527 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:07:59,197 WARN L293 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 524 DAG size of output: 524 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:08:31,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1114479196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:08:31,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:08:31,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 17:08:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568016451] [2023-12-02 17:08:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:08:31,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:08:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:08:31,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:08:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:08:31,596 INFO L87 Difference]: Start difference. First operand 405 states and 596 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 17:08:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:08:45,298 INFO L93 Difference]: Finished difference Result 828 states and 1249 transitions. [2023-12-02 17:08:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 17:08:45,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2023-12-02 17:08:45,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:08:45,302 INFO L225 Difference]: With dead ends: 828 [2023-12-02 17:08:45,302 INFO L226 Difference]: Without dead ends: 486 [2023-12-02 17:08:45,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 108.4s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:08:45,304 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 101 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:08:45,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 3648 Invalid, 2701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2693 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-12-02 17:08:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-02 17:08:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 419. [2023-12-02 17:08:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 279 states have (on average 1.4265232974910393) internal successors, (398), 283 states have internal predecessors, (398), 109 states have call successors, (109), 30 states have call predecessors, (109), 30 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-02 17:08:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 615 transitions. [2023-12-02 17:08:45,420 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 615 transitions. Word has length 84 [2023-12-02 17:08:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:08:45,420 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 615 transitions. [2023-12-02 17:08:45,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 17:08:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 615 transitions. [2023-12-02 17:08:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 17:08:45,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:08:45,422 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:08:45,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:08:45,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 17:08:45,623 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:08:45,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:08:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -165639867, now seen corresponding path program 1 times [2023-12-02 17:08:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:08:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581254324] [2023-12-02 17:08:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:08:45,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:08:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:08:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:08:45,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:08:45,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581254324] [2023-12-02 17:08:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581254324] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:08:45,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324508325] [2023-12-02 17:08:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:08:45,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:08:45,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:08:45,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:08:45,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:08:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:08:46,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:08:46,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:08:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:08:46,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:08:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:08:46,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324508325] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:08:46,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1485528095] [2023-12-02 17:08:46,204 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-12-02 17:08:46,205 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:08:46,205 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:08:46,205 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:08:46,205 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:10:19,103 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:10:19,264 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 556 for LOIs [2023-12-02 17:10:21,258 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 565 for LOIs [2023-12-02 17:10:23,210 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 488 for LOIs [2023-12-02 17:10:23,884 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2023-12-02 17:10:24,060 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:11:25,810 WARN L293 SmtUtils]: Spent 11.99s on a formula simplification. DAG size of input: 597 DAG size of output: 592 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:11:38,094 WARN L293 SmtUtils]: Spent 11.88s on a formula simplification. DAG size of input: 597 DAG size of output: 592 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:12:30,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1485528095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:12:30,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:12:30,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 17:12:30,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629381833] [2023-12-02 17:12:30,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:12:30,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 17:12:30,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:12:30,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 17:12:30,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:12:30,211 INFO L87 Difference]: Start difference. First operand 419 states and 615 transitions. Second operand has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 17:12:55,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:12:55,338 INFO L93 Difference]: Finished difference Result 853 states and 1284 transitions. [2023-12-02 17:12:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 17:12:55,339 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2023-12-02 17:12:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:12:55,343 INFO L225 Difference]: With dead ends: 853 [2023-12-02 17:12:55,344 INFO L226 Difference]: Without dead ends: 511 [2023-12-02 17:12:55,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 126.1s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:12:55,347 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 90 mSDsluCounter, 3990 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:12:55,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 4211 Invalid, 3791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2023-12-02 17:12:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-12-02 17:12:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 455. [2023-12-02 17:12:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 309 states have (on average 1.4239482200647249) internal successors, (440), 313 states have internal predecessors, (440), 112 states have call successors, (112), 33 states have call predecessors, (112), 33 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-02 17:12:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 663 transitions. [2023-12-02 17:12:55,551 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 663 transitions. Word has length 87 [2023-12-02 17:12:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:12:55,551 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 663 transitions. [2023-12-02 17:12:55,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 17:12:55,552 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 663 transitions. [2023-12-02 17:12:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 17:12:55,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:12:55,553 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:12:55,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:12:55,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 17:12:55,754 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:12:55,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:12:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash 823379894, now seen corresponding path program 1 times [2023-12-02 17:12:55,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:12:55,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606826774] [2023-12-02 17:12:55,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:12:55,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:12:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:12:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:12:55,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:12:55,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606826774] [2023-12-02 17:12:55,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606826774] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:12:55,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785269857] [2023-12-02 17:12:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:12:55,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:12:55,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:12:55,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:12:55,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:12:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:12:56,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:12:56,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:12:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:12:56,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:12:56,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:12:56,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785269857] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:12:56,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1413974593] [2023-12-02 17:12:56,279 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 17:12:56,279 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:12:56,280 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:12:56,280 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:12:56,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:14:24,320 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:14:24,481 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2023-12-02 17:14:24,651 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:15:24,836 WARN L293 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 528 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:15:35,405 WARN L293 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 528 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:15:47,294 WARN L293 SmtUtils]: Spent 11.54s on a formula simplification. DAG size of input: 534 DAG size of output: 534 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:15:58,392 WARN L293 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 532 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:16:09,417 WARN L293 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 536 DAG size of output: 536 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:16:20,834 WARN L293 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 534 DAG size of output: 534 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:16:31,849 WARN L293 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 538 DAG size of output: 538 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:16:42,947 WARN L293 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 536 DAG size of output: 536 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:16:54,313 WARN L293 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 540 DAG size of output: 540 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:17:05,652 WARN L293 SmtUtils]: Spent 10.78s on a formula simplification. DAG size of input: 538 DAG size of output: 538 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:17:16,986 WARN L293 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 542 DAG size of output: 542 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:17:25,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1413974593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:25,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:17:25,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 17:17:25,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967477442] [2023-12-02 17:17:25,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:25,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 17:17:25,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:25,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 17:17:25,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 17:17:25,355 INFO L87 Difference]: Start difference. First operand 455 states and 663 transitions. Second operand has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 17:17:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:41,186 INFO L93 Difference]: Finished difference Result 867 states and 1299 transitions. [2023-12-02 17:17:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 17:17:41,186 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 86 [2023-12-02 17:17:41,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:41,189 INFO L225 Difference]: With dead ends: 867 [2023-12-02 17:17:41,189 INFO L226 Difference]: Without dead ends: 525 [2023-12-02 17:17:41,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 180.7s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 17:17:41,191 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 55 mSDsluCounter, 3922 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4137 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:41,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4137 Invalid, 2953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2023-12-02 17:17:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-02 17:17:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 475. [2023-12-02 17:17:41,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 329 states have (on average 1.4285714285714286) internal successors, (470), 333 states have internal predecessors, (470), 112 states have call successors, (112), 33 states have call predecessors, (112), 33 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-02 17:17:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 693 transitions. [2023-12-02 17:17:41,382 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 693 transitions. Word has length 86 [2023-12-02 17:17:41,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:41,382 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 693 transitions. [2023-12-02 17:17:41,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 17:17:41,383 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 693 transitions. [2023-12-02 17:17:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 17:17:41,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:41,384 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:41,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:17:41,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e406673-ef6e-4da8-9305-d28e14823fc9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:17:41,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:41,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1505487889, now seen corresponding path program 1 times [2023-12-02 17:17:41,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:41,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226732599] [2023-12-02 17:17:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 17:17:41,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:41,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226732599] [2023-12-02 17:17:41,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226732599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:41,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:41,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:17:41,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810847114] [2023-12-02 17:17:41,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:41,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:17:41,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:41,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:17:41,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:41,783 INFO L87 Difference]: Start difference. First operand 475 states and 693 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:17:42,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:42,089 INFO L93 Difference]: Finished difference Result 636 states and 886 transitions. [2023-12-02 17:17:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:17:42,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2023-12-02 17:17:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:42,094 INFO L225 Difference]: With dead ends: 636 [2023-12-02 17:17:42,094 INFO L226 Difference]: Without dead ends: 525 [2023-12-02 17:17:42,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:42,096 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 146 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:42,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:17:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-12-02 17:17:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 524. [2023-12-02 17:17:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 354 states have (on average 1.4039548022598871) internal successors, (497), 360 states have internal predecessors, (497), 126 states have call successors, (126), 45 states have call predecessors, (126), 43 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2023-12-02 17:17:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 747 transitions. [2023-12-02 17:17:42,336 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 747 transitions. Word has length 89 [2023-12-02 17:17:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:42,337 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 747 transitions. [2023-12-02 17:17:42,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:17:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 747 transitions. [2023-12-02 17:17:42,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-02 17:17:42,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:42,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:42,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 17:17:42,341 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:42,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:42,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1961041733, now seen corresponding path program 1 times [2023-12-02 17:17:42,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:42,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196884903] [2023-12-02 17:17:42,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:42,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-02 17:17:42,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196884903] [2023-12-02 17:17:42,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196884903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:42,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:42,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-02 17:17:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393777292] [2023-12-02 17:17:42,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:42,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 17:17:42,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:42,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 17:17:42,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-02 17:17:42,918 INFO L87 Difference]: Start difference. First operand 524 states and 747 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29)