./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product32.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_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/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_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/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_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/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 50599b90019c0f8b15701a8959406dc5e052f09e6cd358b81cb6701fde5581e5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:14:48,346 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:14:48,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:14:48,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:14:48,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:14:48,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:14:48,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:14:48,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:14:48,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:14:48,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:14:48,441 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:14:48,442 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:14:48,442 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:14:48,442 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:14:48,443 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:14:48,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:14:48,444 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:14:48,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:14:48,445 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:14:48,445 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:14:48,446 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:14:48,446 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:14:48,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:14:48,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:14:48,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:14:48,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:14:48,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:14:48,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:14:48,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:14:48,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:14:48,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:14:48,451 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:14:48,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:14:48,452 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:14:48,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:14:48,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:14:48,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:14:48,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:14:48,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:14:48,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:14:48,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:14:48,455 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:14:48,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:14:48,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:14:48,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:14:48,456 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:14:48,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:14:48,456 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_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50599b90019c0f8b15701a8959406dc5e052f09e6cd358b81cb6701fde5581e5 [2023-12-02 16:14:48,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:14:48,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:14:48,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:14:48,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:14:48,717 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:14:48,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec9_product32.cil.c [2023-12-02 16:14:51,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:14:51,697 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:14:51,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/sv-benchmarks/c/product-lines/email_spec9_product32.cil.c [2023-12-02 16:14:51,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/data/4f22dcc77/eb3aef818eb74d9eb6482233f5467fd6/FLAG6c2bccc5d [2023-12-02 16:14:51,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/data/4f22dcc77/eb3aef818eb74d9eb6482233f5467fd6 [2023-12-02 16:14:51,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:14:51,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:14:51,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:14:51,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:14:51,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:14:51,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:14:51" (1/1) ... [2023-12-02 16:14:51,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645473c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:51, skipping insertion in model container [2023-12-02 16:14:51,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:14:51" (1/1) ... [2023-12-02 16:14:51,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:14:52,248 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/sv-benchmarks/c/product-lines/email_spec9_product32.cil.c[51167,51180] [2023-12-02 16:14:52,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:14:52,329 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:14:52,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-12-02 16:14:52,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [208] [2023-12-02 16:14:52,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [437] [2023-12-02 16:14:52,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [859] [2023-12-02 16:14:52,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1256] [2023-12-02 16:14:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1273] [2023-12-02 16:14:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2345] [2023-12-02 16:14:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2383] [2023-12-02 16:14:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2392] [2023-12-02 16:14:52,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2434] [2023-12-02 16:14:52,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2800] [2023-12-02 16:14:52,404 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_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/sv-benchmarks/c/product-lines/email_spec9_product32.cil.c[51167,51180] [2023-12-02 16:14:52,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:14:52,452 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:14:52,458 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:14:52,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52 WrapperNode [2023-12-02 16:14:52,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:14:52,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:14:52,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:14:52,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:14:52,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,545 INFO L138 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1029 [2023-12-02 16:14:52,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:14:52,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:14:52,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:14:52,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:14:52,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:14:52,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:14:52,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:14:52,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:14:52,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (1/1) ... [2023-12-02 16:14:52,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:14:52,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:52,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:14:52,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:14:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 16:14:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 16:14:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 16:14:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 16:14:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 16:14:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 16:14:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 16:14:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 16:14:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 16:14:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 16:14:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 16:14:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 16:14:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 16:14:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 16:14:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 16:14:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 16:14:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 16:14:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 16:14:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 16:14:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 16:14:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 16:14:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 16:14:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 16:14:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 16:14:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 16:14:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 16:14:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 16:14:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 16:14:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 16:14:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 16:14:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 16:14:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:14:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 16:14:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 16:14:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 16:14:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 16:14:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 16:14:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 16:14:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 16:14:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 16:14:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 16:14:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 16:14:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 16:14:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 16:14:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 16:14:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 16:14:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 16:14:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 16:14:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 16:14:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 16:14:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 16:14:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 16:14:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 16:14:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 16:14:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:14:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 16:14:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 16:14:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 16:14:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 16:14:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:14:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:14:52,935 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:14:52,938 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:14:53,714 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:14:54,181 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:14:54,182 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:14:54,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:54 BoogieIcfgContainer [2023-12-02 16:14:54,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:14:54,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:14:54,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:14:54,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:14:54,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:14:51" (1/3) ... [2023-12-02 16:14:54,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a20226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:14:54, skipping insertion in model container [2023-12-02 16:14:54,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:14:52" (2/3) ... [2023-12-02 16:14:54,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a20226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:14:54, skipping insertion in model container [2023-12-02 16:14:54,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:14:54" (3/3) ... [2023-12-02 16:14:54,191 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product32.cil.c [2023-12-02 16:14:54,207 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:14:54,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:14:54,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:14:54,283 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;@15059d47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:14:54,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:14:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-02 16:14:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 16:14:54,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:54,305 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 16:14:54,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:14:54,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:54,311 INFO L85 PathProgramCache]: Analyzing trace with hash -744735216, now seen corresponding path program 1 times [2023-12-02 16:14:54,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:54,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074166019] [2023-12-02 16:14:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:54,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:54,640 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 16:14:54,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:54,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074166019] [2023-12-02 16:14:54,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074166019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:54,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:54,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:14:54,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782621212] [2023-12-02 16:14:54,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:54,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:14:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:54,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:14:54,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:14:54,703 INFO L87 Difference]: Start difference. First operand has 219 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 129 states have internal predecessors, (162), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) 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 16:14:54,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:54,856 INFO L93 Difference]: Finished difference Result 346 states and 455 transitions. [2023-12-02 16:14:54,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:14:54,859 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 16:14:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:54,872 INFO L225 Difference]: With dead ends: 346 [2023-12-02 16:14:54,872 INFO L226 Difference]: Without dead ends: 216 [2023-12-02 16:14:54,878 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 16:14:54,882 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:54,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-12-02 16:14:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2023-12-02 16:14:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 122 states have (on average 1.278688524590164) internal successors, (156), 126 states have internal predecessors, (156), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-02 16:14:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 285 transitions. [2023-12-02 16:14:54,944 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 285 transitions. Word has length 71 [2023-12-02 16:14:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:54,946 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 285 transitions. [2023-12-02 16:14:54,946 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 16:14:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 285 transitions. [2023-12-02 16:14:54,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 16:14:54,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:54,951 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 16:14:54,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:14:54,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:14:54,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:54,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1428120987, now seen corresponding path program 1 times [2023-12-02 16:14:54,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:54,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300100488] [2023-12-02 16:14:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:54,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:55,140 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 16:14:55,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:55,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300100488] [2023-12-02 16:14:55,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300100488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:55,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:55,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:14:55,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933742526] [2023-12-02 16:14:55,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:55,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:55,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:55,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:55,145 INFO L87 Difference]: Start difference. First operand 216 states and 285 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 16:14:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:55,269 INFO L93 Difference]: Finished difference Result 342 states and 440 transitions. [2023-12-02 16:14:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:55,270 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 16:14:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:55,274 INFO L225 Difference]: With dead ends: 342 [2023-12-02 16:14:55,274 INFO L226 Difference]: Without dead ends: 218 [2023-12-02 16:14:55,275 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 16:14:55,277 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:55,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-02 16:14:55,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2023-12-02 16:14:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 128 states have internal predecessors, (158), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-02 16:14:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2023-12-02 16:14:55,302 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 72 [2023-12-02 16:14:55,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:55,302 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2023-12-02 16:14:55,303 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 16:14:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2023-12-02 16:14:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 16:14:55,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:55,307 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 16:14:55,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:14:55,307 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:14:55,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash 107639323, now seen corresponding path program 1 times [2023-12-02 16:14:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:55,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726429406] [2023-12-02 16:14:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:55,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:55,428 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 16:14:55,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:55,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726429406] [2023-12-02 16:14:55,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726429406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:14:55,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:14:55,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:14:55,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049831485] [2023-12-02 16:14:55,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:14:55,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:14:55,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:14:55,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:14:55,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:14:55,431 INFO L87 Difference]: Start difference. First operand 218 states and 287 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 16:14:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:14:55,577 INFO L93 Difference]: Finished difference Result 471 states and 641 transitions. [2023-12-02 16:14:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:14:55,578 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 16:14:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:14:55,581 INFO L225 Difference]: With dead ends: 471 [2023-12-02 16:14:55,581 INFO L226 Difference]: Without dead ends: 271 [2023-12-02 16:14:55,582 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 16:14:55,584 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 59 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:14:55,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 489 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:14:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-12-02 16:14:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2023-12-02 16:14:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 162 states have internal predecessors, (213), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-02 16:14:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 370 transitions. [2023-12-02 16:14:55,609 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 370 transitions. Word has length 77 [2023-12-02 16:14:55,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:14:55,610 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 370 transitions. [2023-12-02 16:14:55,610 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 16:14:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 370 transitions. [2023-12-02 16:14:55,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 16:14:55,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:14:55,613 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 16:14:55,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:14:55,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:14:55,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:14:55,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2137920399, now seen corresponding path program 1 times [2023-12-02 16:14:55,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:14:55,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608317402] [2023-12-02 16:14:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:55,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:14:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 16:14:55,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:14:55,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608317402] [2023-12-02 16:14:55,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608317402] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:14:55,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15300707] [2023-12-02 16:14:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:14:55,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:14:55,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:14:55,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:14:55,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:14:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:14:56,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:14:56,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:14:56,203 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 16:14:56,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:14:56,281 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 16:14:56,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15300707] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:14:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [525406554] [2023-12-02 16:14:56,303 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 16:14:56,304 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:14:56,308 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:14:56,313 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:14:56,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:15:47,136 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 16:15:47,295 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2023-12-02 16:15:47,454 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:16:46,838 WARN L293 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 522 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:16:57,079 WARN L293 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 523 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:17:07,940 WARN L293 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 529 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:17:18,846 WARN L293 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 527 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:17:22,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [525406554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:17:22,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:17:22,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 16:17:22,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012100433] [2023-12-02 16:17:22,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:17:22,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 16:17:22,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 16:17:22,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:17:22,776 INFO L87 Difference]: Start difference. First operand 266 states and 370 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 16:17:33,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:33,825 INFO L93 Difference]: Finished difference Result 579 states and 840 transitions. [2023-12-02 16:17:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 16:17:33,826 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 16:17:33,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:33,828 INFO L225 Difference]: With dead ends: 579 [2023-12-02 16:17:33,828 INFO L226 Difference]: Without dead ends: 331 [2023-12-02 16:17:33,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 95.3s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:17:33,830 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 87 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:33,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3622 Invalid, 2355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-12-02 16:17:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-02 16:17:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 289. [2023-12-02 16:17:33,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 184 states have internal predecessors, (246), 79 states have call successors, (79), 29 states have call predecessors, (79), 29 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-02 16:17:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2023-12-02 16:17:33,911 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 78 [2023-12-02 16:17:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:33,912 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2023-12-02 16:17:33,912 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 16:17:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2023-12-02 16:17:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 16:17:33,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:17:33,914 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 16:17:33,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:17:34,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:17:34,115 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:17:34,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:17:34,116 INFO L85 PathProgramCache]: Analyzing trace with hash -304086745, now seen corresponding path program 1 times [2023-12-02 16:17:34,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:17:34,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838965138] [2023-12-02 16:17:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:17:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:34,207 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 16:17:34,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:34,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838965138] [2023-12-02 16:17:34,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838965138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:17:34,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:17:34,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:17:34,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256166263] [2023-12-02 16:17:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:17:34,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:17:34,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:17:34,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:17:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:17:34,210 INFO L87 Difference]: Start difference. First operand 289 states and 403 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 16:17:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:17:34,436 INFO L93 Difference]: Finished difference Result 681 states and 986 transitions. [2023-12-02 16:17:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:17:34,437 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 16:17:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:17:34,441 INFO L225 Difference]: With dead ends: 681 [2023-12-02 16:17:34,441 INFO L226 Difference]: Without dead ends: 416 [2023-12-02 16:17:34,442 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 16:17:34,443 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 57 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:17:34,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 497 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:17:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-12-02 16:17:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 411. [2023-12-02 16:17:34,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 271 states have (on average 1.4243542435424354) internal successors, (386), 275 states have internal predecessors, (386), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-12-02 16:17:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 605 transitions. [2023-12-02 16:17:34,554 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 605 transitions. Word has length 83 [2023-12-02 16:17:34,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:17:34,554 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 605 transitions. [2023-12-02 16:17:34,555 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 16:17:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 605 transitions. [2023-12-02 16:17:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 16:17:34,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:17:34,558 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 16:17:34,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:17:34,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:17:34,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:17:34,559 INFO L85 PathProgramCache]: Analyzing trace with hash 341086592, now seen corresponding path program 1 times [2023-12-02 16:17:34,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:17:34,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837415214] [2023-12-02 16:17:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:34,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:17:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:34,722 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 16:17:34,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:17:34,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837415214] [2023-12-02 16:17:34,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837415214] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:17:34,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097166844] [2023-12-02 16:17:34,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:17:34,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:17:34,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:17:34,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:17:34,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:17:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:17:35,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:17:35,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:17:35,061 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 16:17:35,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:17:35,123 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 16:17:35,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097166844] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:17:35,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2143642687] [2023-12-02 16:17:35,127 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 16:17:35,127 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:17:35,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:17:35,128 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:17:35,128 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:18:48,506 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 16:18:48,665 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 502 for LOIs [2023-12-02 16:18:50,839 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:19:12,864 WARN L293 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 502 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:19:22,668 WARN L293 SmtUtils]: Spent 9.63s on a formula simplification. DAG size of input: 532 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:20:03,979 WARN L293 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 525 DAG size of output: 525 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:20:14,415 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 526 DAG size of output: 525 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:20:25,159 WARN L293 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 532 DAG size of output: 531 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:20:35,997 WARN L293 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 530 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:20:58,409 WARN L293 SmtUtils]: Spent 21.89s on a formula simplification. DAG size of input: 540 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:21:21,316 WARN L293 SmtUtils]: Spent 22.34s on a formula simplification. DAG size of input: 538 DAG size of output: 527 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:21:33,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2143642687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:33,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:21:33,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 16:21:33,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110223263] [2023-12-02 16:21:33,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:33,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 16:21:33,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:33,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 16:21:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:21:33,081 INFO L87 Difference]: Start difference. First operand 411 states and 605 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 16:21:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:48,865 INFO L93 Difference]: Finished difference Result 840 states and 1267 transitions. [2023-12-02 16:21:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 16:21:48,866 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 16:21:48,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:48,870 INFO L225 Difference]: With dead ends: 840 [2023-12-02 16:21:48,870 INFO L226 Difference]: Without dead ends: 492 [2023-12-02 16:21:48,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 162.2s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:21:48,873 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 76 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 2765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:48,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 3787 Invalid, 2765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2023-12-02 16:21:48,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-02 16:21:48,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 425. [2023-12-02 16:21:48,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 283 states have (on average 1.4240282685512367) internal successors, (403), 287 states have internal predecessors, (403), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-02 16:21:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 624 transitions. [2023-12-02 16:21:49,003 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 624 transitions. Word has length 84 [2023-12-02 16:21:49,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:49,003 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 624 transitions. [2023-12-02 16:21:49,004 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 16:21:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 624 transitions. [2023-12-02 16:21:49,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 16:21:49,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:49,006 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 16:21:49,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:21:49,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:49,207 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:21:49,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1569089592, now seen corresponding path program 1 times [2023-12-02 16:21:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:49,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239980814] [2023-12-02 16:21:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:49,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:49,333 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 16:21:49,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:49,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239980814] [2023-12-02 16:21:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239980814] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648723384] [2023-12-02 16:21:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:49,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:49,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:49,335 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:49,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:21:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:49,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:21:49,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:49,689 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 16:21:49,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:49,746 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 16:21:49,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648723384] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:49,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [872324163] [2023-12-02 16:21:49,750 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-12-02 16:21:49,750 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:49,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:49,751 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:49,751 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:23:28,433 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 16:23:28,597 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 561 for LOIs [2023-12-02 16:23:30,443 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 570 for LOIs [2023-12-02 16:23:32,381 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 493 for LOIs [2023-12-02 16:23:33,324 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2023-12-02 16:23:33,483 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:24:35,232 WARN L293 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 598 DAG size of output: 593 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:24:47,823 WARN L293 SmtUtils]: Spent 12.19s on a formula simplification. DAG size of input: 599 DAG size of output: 593 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:25:42,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [872324163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:25:42,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:25:42,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 16:25:42,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919098594] [2023-12-02 16:25:42,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:25:42,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 16:25:42,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:25:42,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 16:25:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:25:42,304 INFO L87 Difference]: Start difference. First operand 425 states and 624 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 16:26:06,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:26:06,763 INFO L93 Difference]: Finished difference Result 865 states and 1302 transitions. [2023-12-02 16:26:06,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 16:26:06,764 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 16:26:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:26:06,768 INFO L225 Difference]: With dead ends: 865 [2023-12-02 16:26:06,768 INFO L226 Difference]: Without dead ends: 517 [2023-12-02 16:26:06,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 128.8s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:26:06,770 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 90 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 3798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:26:06,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 4161 Invalid, 3798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3789 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2023-12-02 16:26:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-02 16:26:06,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 461. [2023-12-02 16:26:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 313 states have (on average 1.4217252396166133) internal successors, (445), 317 states have internal predecessors, (445), 114 states have call successors, (114), 33 states have call predecessors, (114), 33 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2023-12-02 16:26:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 672 transitions. [2023-12-02 16:26:06,950 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 672 transitions. Word has length 87 [2023-12-02 16:26:06,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:26:06,951 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 672 transitions. [2023-12-02 16:26:06,951 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 16:26:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 672 transitions. [2023-12-02 16:26:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 16:26:06,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:26:06,953 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 16:26:06,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:26:07,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:26:07,154 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:26:07,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:26:07,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1091237763, now seen corresponding path program 1 times [2023-12-02 16:26:07,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:26:07,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51617737] [2023-12-02 16:26:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:07,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:26:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:07,255 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 16:26:07,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:26:07,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51617737] [2023-12-02 16:26:07,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51617737] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:26:07,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919404178] [2023-12-02 16:26:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:07,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:26:07,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:26:07,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:26:07,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8115b5-5d3d-4eee-8af1-7b59430b6f57/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:26:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:07,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:26:07,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:26:07,584 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 16:26:07,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:26:07,641 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 16:26:07,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919404178] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:26:07,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [917290866] [2023-12-02 16:26:07,645 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 16:26:07,645 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:26:07,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:26:07,645 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:26:07,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:27:33,259 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 16:27:33,420 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2023-12-02 16:27:33,581 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:28:32,188 WARN L293 SmtUtils]: Spent 10.07s on a formula simplification. DAG size of input: 529 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:28:42,287 WARN L293 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 530 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:28:53,081 WARN L293 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 536 DAG size of output: 535 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:29:04,089 WARN L293 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 534 DAG size of output: 533 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)