./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product37.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_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/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_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/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_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/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 70e213904f46d9e57b153e0058e447b0a5def856d61642628bc56ad0035cdccb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:19:14,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:19:14,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:19:14,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:19:14,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:19:14,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:19:14,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:19:14,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:19:14,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:19:14,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:19:14,462 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:19:14,463 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:19:14,463 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:19:14,464 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:19:14,464 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:19:14,465 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:19:14,465 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:19:14,466 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:19:14,466 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:19:14,467 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:19:14,467 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:19:14,468 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:19:14,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:19:14,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:19:14,470 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:19:14,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:19:14,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:19:14,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:19:14,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:19:14,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:19:14,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:19:14,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:19:14,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:19:14,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:19:14,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:19:14,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:19:14,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:19:14,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:19:14,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:19:14,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:19:14,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:19:14,477 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:19:14,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:19:14,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:19:14,477 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:19:14,477 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:19:14,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:19:14,478 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_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70e213904f46d9e57b153e0058e447b0a5def856d61642628bc56ad0035cdccb [2023-12-02 19:19:14,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:19:14,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:19:14,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:19:14,704 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:19:14,705 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:19:14,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c [2023-12-02 19:19:17,406 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:19:17,680 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:19:17,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c [2023-12-02 19:19:17,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/data/629644730/5b81d5bae2a449019abfcee7caa6651e/FLAG111d1fb72 [2023-12-02 19:19:17,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/data/629644730/5b81d5bae2a449019abfcee7caa6651e [2023-12-02 19:19:17,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:19:17,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:19:17,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:19:17,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:19:17,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:19:17,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:19:17" (1/1) ... [2023-12-02 19:19:17,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d87bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:17, skipping insertion in model container [2023-12-02 19:19:17,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:19:17" (1/1) ... [2023-12-02 19:19:17,812 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:19:18,171 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_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c[43755,43768] [2023-12-02 19:19:18,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:19:18,277 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:19:18,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-02 19:19:18,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [66] [2023-12-02 19:19:18,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [295] [2023-12-02 19:19:18,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [661] [2023-12-02 19:19:18,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1741] [2023-12-02 19:19:18,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1790] [2023-12-02 19:19:18,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1812] [2023-12-02 19:19:18,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1821] [2023-12-02 19:19:18,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2233] [2023-12-02 19:19:18,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2524] [2023-12-02 19:19:18,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2753] [2023-12-02 19:19:18,346 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_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c[43755,43768] [2023-12-02 19:19:18,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:19:18,425 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:19:18,432 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:19:18,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18 WrapperNode [2023-12-02 19:19:18,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:19:18,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:19:18,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:19:18,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:19:18,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,506 INFO L138 Inliner]: procedures = 124, calls = 186, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 857 [2023-12-02 19:19:18,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:19:18,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:19:18,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:19:18,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:19:18,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:19:18,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:19:18,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:19:18,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:19:18,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (1/1) ... [2023-12-02 19:19:18,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:19:18,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:19:18,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:19:18,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:19:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 19:19:18,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 19:19:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 19:19:18,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 19:19:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 19:19:18,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 19:19:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 19:19:18,635 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 19:19:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 19:19:18,635 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 19:19:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 19:19:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 19:19:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 19:19:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 19:19:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 19:19:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 19:19:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 19:19:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:19:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 19:19:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 19:19:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 19:19:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 19:19:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 19:19:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 19:19:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 19:19:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 19:19:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 19:19:18,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 19:19:18,638 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 19:19:18,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 19:19:18,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:19:18,638 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 19:19:18,638 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 19:19:18,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:19:18,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:19:18,814 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:19:18,817 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:19:19,364 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:19:19,651 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:19:19,651 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:19:19,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:19:19 BoogieIcfgContainer [2023-12-02 19:19:19,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:19:19,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:19:19,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:19:19,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:19:19,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:19:17" (1/3) ... [2023-12-02 19:19:19,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52225987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:19:19, skipping insertion in model container [2023-12-02 19:19:19,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:19:18" (2/3) ... [2023-12-02 19:19:19,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52225987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:19:19, skipping insertion in model container [2023-12-02 19:19:19,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:19:19" (3/3) ... [2023-12-02 19:19:19,660 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product37.cil.c [2023-12-02 19:19:19,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:19:19,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:19:19,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:19:19,732 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;@1c41edec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:19:19,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:19:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 19:19:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 19:19:19,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:19:19,748 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] [2023-12-02 19:19:19,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:19:19,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:19:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1271955444, now seen corresponding path program 1 times [2023-12-02 19:19:19,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:19:19,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838383804] [2023-12-02 19:19:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:19,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:19:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:20,046 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 19:19:20,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:19:20,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838383804] [2023-12-02 19:19:20,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838383804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:19:20,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:19:20,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:19:20,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365083360] [2023-12-02 19:19:20,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:19:20,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:19:20,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:19:20,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:19:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:19:20,081 INFO L87 Difference]: Start difference. First operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:19:20,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:19:20,173 INFO L93 Difference]: Finished difference Result 199 states and 266 transitions. [2023-12-02 19:19:20,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:19:20,176 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2023-12-02 19:19:20,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:19:20,185 INFO L225 Difference]: With dead ends: 199 [2023-12-02 19:19:20,185 INFO L226 Difference]: Without dead ends: 138 [2023-12-02 19:19:20,189 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 19:19:20,192 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:19:20,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:19:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-02 19:19:20,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-12-02 19:19:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 83 states have internal predecessors, (108), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-02 19:19:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 187 transitions. [2023-12-02 19:19:20,239 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 187 transitions. Word has length 54 [2023-12-02 19:19:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:19:20,241 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 187 transitions. [2023-12-02 19:19:20,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:19:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 187 transitions. [2023-12-02 19:19:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 19:19:20,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:19:20,245 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] [2023-12-02 19:19:20,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:19:20,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:19:20,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:19:20,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2101488084, now seen corresponding path program 1 times [2023-12-02 19:19:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:19:20,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130358076] [2023-12-02 19:19:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:20,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:19:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:20,438 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 19:19:20,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:19:20,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130358076] [2023-12-02 19:19:20,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130358076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:19:20,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:19:20,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:19:20,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883559992] [2023-12-02 19:19:20,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:19:20,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:19:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:19:20,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:19:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:19:20,453 INFO L87 Difference]: Start difference. First operand 138 states and 187 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:19:20,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:19:20,547 INFO L93 Difference]: Finished difference Result 195 states and 254 transitions. [2023-12-02 19:19:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:19:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 55 [2023-12-02 19:19:20,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:19:20,551 INFO L225 Difference]: With dead ends: 195 [2023-12-02 19:19:20,551 INFO L226 Difference]: Without dead ends: 140 [2023-12-02 19:19:20,552 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 19:19:20,554 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:19:20,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:19:20,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-02 19:19:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-02 19:19:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 85 states have internal predecessors, (110), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-02 19:19:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 189 transitions. [2023-12-02 19:19:20,576 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 189 transitions. Word has length 55 [2023-12-02 19:19:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:19:20,577 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 189 transitions. [2023-12-02 19:19:20,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:19:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 189 transitions. [2023-12-02 19:19:20,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 19:19:20,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:19:20,581 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] [2023-12-02 19:19:20,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:19:20,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:19:20,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:19:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -675508498, now seen corresponding path program 1 times [2023-12-02 19:19:20,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:19:20,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295519305] [2023-12-02 19:19:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:19:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:20,693 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 19:19:20,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:19:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295519305] [2023-12-02 19:19:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295519305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:19:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:19:20,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:19:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909286852] [2023-12-02 19:19:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:19:20,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:19:20,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:19:20,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:19:20,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:19:20,697 INFO L87 Difference]: Start difference. First operand 140 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:19:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:19:20,786 INFO L93 Difference]: Finished difference Result 310 states and 437 transitions. [2023-12-02 19:19:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:19:20,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2023-12-02 19:19:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:19:20,790 INFO L225 Difference]: With dead ends: 310 [2023-12-02 19:19:20,790 INFO L226 Difference]: Without dead ends: 188 [2023-12-02 19:19:20,792 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 19:19:20,793 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:19:20,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 336 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:19:20,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-02 19:19:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2023-12-02 19:19:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 117 states have internal predecessors, (163), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-02 19:19:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 264 transitions. [2023-12-02 19:19:20,816 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 264 transitions. Word has length 60 [2023-12-02 19:19:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:19:20,817 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 264 transitions. [2023-12-02 19:19:20,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:19:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 264 transitions. [2023-12-02 19:19:20,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 19:19:20,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:19:20,820 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] [2023-12-02 19:19:20,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:19:20,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:19:20,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:19:20,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1677352861, now seen corresponding path program 1 times [2023-12-02 19:19:20,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:19:20,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097569760] [2023-12-02 19:19:20,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:20,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:19:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:20,978 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 19:19:20,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:19:20,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097569760] [2023-12-02 19:19:20,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097569760] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:19:20,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761168037] [2023-12-02 19:19:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:19:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:19:20,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:19:20,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:19:20,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:19:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:19:21,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:19:21,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:19:21,329 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 19:19:21,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:19:21,395 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 19:19:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761168037] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:19:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1963187080] [2023-12-02 19:19:21,413 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2023-12-02 19:19:21,413 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:19:21,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:19:21,421 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:19:21,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:20:09,803 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 19:20:09,961 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 19:20:10,122 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:21:01,593 WARN L293 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 480 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:21:10,267 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 481 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:21:29,878 WARN L293 SmtUtils]: Spent 19.19s on a formula simplification. DAG size of input: 493 DAG size of output: 482 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:21:50,372 WARN L293 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 491 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:21:53,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1963187080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:21:53,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:21:53,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 19:21:53,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102754380] [2023-12-02 19:21:53,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:21:53,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 19:21:53,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:21:53,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 19:21:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 19:21:53,774 INFO L87 Difference]: Start difference. First operand 183 states and 264 transitions. Second operand has 24 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 19:22:03,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:22:03,848 INFO L93 Difference]: Finished difference Result 411 states and 624 transitions. [2023-12-02 19:22:03,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 19:22:03,849 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 61 [2023-12-02 19:22:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:22:03,853 INFO L225 Difference]: With dead ends: 411 [2023-12-02 19:22:03,853 INFO L226 Difference]: Without dead ends: 246 [2023-12-02 19:22:03,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 103.6s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 19:22:03,856 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 56 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:22:03,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2444 Invalid, 2171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 19:22:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-02 19:22:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 206. [2023-12-02 19:22:03,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 138 states have (on average 1.4202898550724639) internal successors, (196), 139 states have internal predecessors, (196), 51 states have call successors, (51), 16 states have call predecessors, (51), 16 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-02 19:22:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 297 transitions. [2023-12-02 19:22:03,925 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 297 transitions. Word has length 61 [2023-12-02 19:22:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:22:03,925 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 297 transitions. [2023-12-02 19:22:03,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 19:22:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 297 transitions. [2023-12-02 19:22:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 19:22:03,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:22:03,929 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] [2023-12-02 19:22:03,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:22:04,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:22:04,130 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:22:04,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:22:04,130 INFO L85 PathProgramCache]: Analyzing trace with hash 841039377, now seen corresponding path program 1 times [2023-12-02 19:22:04,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:22:04,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514367074] [2023-12-02 19:22:04,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:22:04,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:22:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:22:04,218 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 19:22:04,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:22:04,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514367074] [2023-12-02 19:22:04,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514367074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:22:04,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:22:04,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:22:04,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607732874] [2023-12-02 19:22:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:22:04,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:22:04,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:22:04,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:22:04,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:22:04,221 INFO L87 Difference]: Start difference. First operand 206 states and 297 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:22:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:22:04,419 INFO L93 Difference]: Finished difference Result 505 states and 758 transitions. [2023-12-02 19:22:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:22:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2023-12-02 19:22:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:22:04,423 INFO L225 Difference]: With dead ends: 505 [2023-12-02 19:22:04,423 INFO L226 Difference]: Without dead ends: 323 [2023-12-02 19:22:04,424 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 19:22:04,425 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 55 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:22:04,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 332 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:22:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-02 19:22:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 318. [2023-12-02 19:22:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 225 states have (on average 1.4755555555555555) internal successors, (332), 226 states have internal predecessors, (332), 76 states have call successors, (76), 16 states have call predecessors, (76), 16 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 19:22:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 483 transitions. [2023-12-02 19:22:04,548 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 483 transitions. Word has length 66 [2023-12-02 19:22:04,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:22:04,548 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 483 transitions. [2023-12-02 19:22:04,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:22:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 483 transitions. [2023-12-02 19:22:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 19:22:04,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:22:04,551 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] [2023-12-02 19:22:04,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:22:04,552 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:22:04,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:22:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003363, now seen corresponding path program 1 times [2023-12-02 19:22:04,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:22:04,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096232792] [2023-12-02 19:22:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:22:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:22:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:22:04,665 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 19:22:04,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:22:04,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096232792] [2023-12-02 19:22:04,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096232792] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:22:04,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522097866] [2023-12-02 19:22:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:22:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:22:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:22:04,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:22:04,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:22:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:22:04,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:22:04,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:22:04,917 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 19:22:04,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:22:04,982 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 19:22:04,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522097866] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:22:04,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [152160153] [2023-12-02 19:22:04,986 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2023-12-02 19:22:04,986 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:22:04,987 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:22:04,987 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:22:04,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:23:12,149 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 19:23:12,312 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 456 for LOIs [2023-12-02 19:23:14,379 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:23:34,235 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:23:43,411 WARN L293 SmtUtils]: Spent 9.02s on a formula simplification. DAG size of input: 486 DAG size of output: 481 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:24:21,119 WARN L293 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 483 DAG size of output: 483 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:24:30,076 WARN L293 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 484 DAG size of output: 483 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:24:50,130 WARN L293 SmtUtils]: Spent 19.65s on a formula simplification. DAG size of input: 496 DAG size of output: 485 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:25:10,775 WARN L293 SmtUtils]: Spent 20.21s on a formula simplification. DAG size of input: 494 DAG size of output: 483 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:25:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [152160153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:25:27,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:25:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 19:25:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110024863] [2023-12-02 19:25:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:25:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 19:25:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:25:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 19:25:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:25:27,780 INFO L87 Difference]: Start difference. First operand 318 states and 483 transitions. Second operand has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 19:25:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:25:38,010 INFO L93 Difference]: Finished difference Result 652 states and 1019 transitions. [2023-12-02 19:25:38,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 19:25:38,011 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 67 [2023-12-02 19:25:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:25:38,014 INFO L225 Difference]: With dead ends: 652 [2023-12-02 19:25:38,014 INFO L226 Difference]: Without dead ends: 397 [2023-12-02 19:25:38,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 133.4s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:25:38,016 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 73 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:25:38,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2067 Invalid, 2068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-12-02 19:25:38,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-02 19:25:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 332. [2023-12-02 19:25:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 237 states have (on average 1.4725738396624473) internal successors, (349), 238 states have internal predecessors, (349), 77 states have call successors, (77), 17 states have call predecessors, (77), 17 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 19:25:38,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 502 transitions. [2023-12-02 19:25:38,120 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 502 transitions. Word has length 67 [2023-12-02 19:25:38,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:25:38,120 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 502 transitions. [2023-12-02 19:25:38,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 19:25:38,120 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 502 transitions. [2023-12-02 19:25:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 19:25:38,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:25:38,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:25:38,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:25:38,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:25:38,323 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:25:38,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:25:38,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1565570722, now seen corresponding path program 1 times [2023-12-02 19:25:38,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:25:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101949365] [2023-12-02 19:25:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:25:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:25:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:25:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 19:25:38,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:25:38,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101949365] [2023-12-02 19:25:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101949365] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:25:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665388675] [2023-12-02 19:25:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:25:38,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:25:38,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:25:38,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:25:38,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:25:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:25:38,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:25:38,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:25:38,765 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 19:25:38,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:25:38,822 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 19:25:38,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665388675] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:25:38,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1944876230] [2023-12-02 19:25:38,826 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 19:25:38,827 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:25:38,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:25:38,828 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:25:38,828 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:27:03,329 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 19:27:03,486 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 523 for LOIs [2023-12-02 19:27:05,058 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 447 for LOIs [2023-12-02 19:27:05,629 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 19:27:05,786 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 532 for LOIs [2023-12-02 19:27:07,423 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:27:59,767 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 564 DAG size of output: 559 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:28:09,856 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 565 DAG size of output: 559 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:28:54,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1944876230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:28:54,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:28:54,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 19:28:54,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445717304] [2023-12-02 19:28:54,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:28:54,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 19:28:54,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:28:54,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 19:28:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 19:28:54,160 INFO L87 Difference]: Start difference. First operand 332 states and 502 transitions. Second operand has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 19:29:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:29:11,276 INFO L93 Difference]: Finished difference Result 677 states and 1054 transitions. [2023-12-02 19:29:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 19:29:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 70 [2023-12-02 19:29:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:29:11,280 INFO L225 Difference]: With dead ends: 677 [2023-12-02 19:29:11,280 INFO L226 Difference]: Without dead ends: 422 [2023-12-02 19:29:11,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 106.7s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 19:29:11,281 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 58 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:29:11,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2809 Invalid, 3116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2023-12-02 19:29:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-12-02 19:29:11,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 368. [2023-12-02 19:29:11,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 268 states have internal predecessors, (391), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-02 19:29:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 550 transitions. [2023-12-02 19:29:11,430 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 550 transitions. Word has length 70 [2023-12-02 19:29:11,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:29:11,431 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 550 transitions. [2023-12-02 19:29:11,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 19:29:11,431 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 550 transitions. [2023-12-02 19:29:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 19:29:11,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:29:11,433 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] [2023-12-02 19:29:11,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 19:29:11,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:29:11,634 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:29:11,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:29:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1077248687, now seen corresponding path program 1 times [2023-12-02 19:29:11,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:29:11,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055989508] [2023-12-02 19:29:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:29:11,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:29:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:29:11,742 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 19:29:11,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:29:11,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055989508] [2023-12-02 19:29:11,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055989508] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:29:11,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718344438] [2023-12-02 19:29:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:29:11,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:29:11,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:29:11,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:29:11,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:29:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:29:11,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:29:11,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:29:12,018 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 19:29:12,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:29:12,070 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 19:29:12,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718344438] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:29:12,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [817669903] [2023-12-02 19:29:12,073 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2023-12-02 19:29:12,073 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:29:12,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:29:12,074 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:29:12,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:30:20,863 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 19:30:21,037 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 19:30:21,197 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:31:12,129 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:31:20,996 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 489 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:31:41,282 WARN L293 SmtUtils]: Spent 19.88s on a formula simplification. DAG size of input: 501 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:32:01,417 WARN L293 SmtUtils]: Spent 19.74s on a formula simplification. DAG size of input: 499 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:32:19,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [817669903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:19,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:32:19,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 19:32:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830213453] [2023-12-02 19:32:19,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:19,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 19:32:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 19:32:19,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 19:32:19,736 INFO L87 Difference]: Start difference. First operand 368 states and 550 transitions. Second operand has 32 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 19:32:34,502 WARN L293 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 489 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:32:41,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:41,205 INFO L93 Difference]: Finished difference Result 777 states and 1208 transitions. [2023-12-02 19:32:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 19:32:41,206 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 69 [2023-12-02 19:32:41,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:41,209 INFO L225 Difference]: With dead ends: 777 [2023-12-02 19:32:41,209 INFO L226 Difference]: Without dead ends: 522 [2023-12-02 19:32:41,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 129.2s TimeCoverageRelationStatistics Valid=175, Invalid=1307, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 19:32:41,211 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 302 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 2288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:41,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 2598 Invalid, 2288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 19:32:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-02 19:32:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 388. [2023-12-02 19:32:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 287 states have (on average 1.4738675958188154) internal successors, (423), 288 states have internal predecessors, (423), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-02 19:32:41,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 582 transitions. [2023-12-02 19:32:41,369 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 582 transitions. Word has length 69 [2023-12-02 19:32:41,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:41,370 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 582 transitions. [2023-12-02 19:32:41,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 19:32:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 582 transitions. [2023-12-02 19:32:41,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 19:32:41,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:41,371 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:41,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 19:32:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:32:41,572 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:32:41,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash 975225000, now seen corresponding path program 1 times [2023-12-02 19:32:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:41,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457289560] [2023-12-02 19:32:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:41,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:32:41,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457289560] [2023-12-02 19:32:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457289560] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:32:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046922329] [2023-12-02 19:32:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:41,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:32:41,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:32:41,739 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:32:41,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b93d73e9-6ac6-4e20-aa1c-bb82da35c0e1/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:32:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:41,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:32:41,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:32:42,037 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:32:42,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:32:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:32:42,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046922329] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:32:42,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1898579286] [2023-12-02 19:32:42,109 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2023-12-02 19:32:42,109 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:32:42,110 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:32:42,110 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:32:42,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:33:44,765 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 19:33:44,926 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 458 for LOIs