./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2 --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 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:23:24,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:23:24,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:23:24,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:23:24,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:23:24,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:23:24,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:23:24,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:23:24,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:23:24,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:23:24,493 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:23:24,494 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:23:24,494 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:23:24,495 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:23:24,496 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:23:24,496 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:23:24,498 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:23:24,499 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:23:24,500 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:23:24,500 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:23:24,500 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:23:24,504 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:23:24,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:23:24,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:23:24,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:23:24,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:23:24,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:23:24,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:23:24,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:23:24,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:23:24,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:23:24,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:23:24,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:23:24,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:23:24,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:23:24,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:23:24,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:23:24,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:23:24,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:24,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:23:24,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:23:24,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:23:24,514 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:23:24,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:23:24,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:23:24,514 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:23:24,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:23:24,515 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_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2024-11-02 12:23:24,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:23:24,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:23:24,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:23:24,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:23:24,829 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:23:24,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c Unable to find full path for "g++" [2024-11-02 12:23:27,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:23:27,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:23:27,378 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2024-11-02 12:23:27,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/data/1e8b95f58/c61849de99e945ba8b0ab41ed2c9c2c7/FLAG0113df90e [2024-11-02 12:23:27,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/data/1e8b95f58/c61849de99e945ba8b0ab41ed2c9c2c7 [2024-11-02 12:23:27,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:23:27,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:23:27,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:23:27,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:23:27,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:23:27,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:23:27" (1/1) ... [2024-11-02 12:23:27,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3134543f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:27, skipping insertion in model container [2024-11-02 12:23:27,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:23:27" (1/1) ... [2024-11-02 12:23:27,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:23:28,286 WARN L251 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_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2024-11-02 12:23:28,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:23:28,340 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:23:28,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-02 12:23:28,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [460] [2024-11-02 12:23:28,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1540] [2024-11-02 12:23:28,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1573] [2024-11-02 12:23:28,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1939] [2024-11-02 12:23:28,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2172] [2024-11-02 12:23:28,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2190] [2024-11-02 12:23:28,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2327] [2024-11-02 12:23:28,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2766] [2024-11-02 12:23:28,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2775] [2024-11-02 12:23:28,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2813] [2024-11-02 12:23:28,548 WARN L251 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_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2024-11-02 12:23:28,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:23:28,663 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:23:28,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28 WrapperNode [2024-11-02 12:23:28,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:23:28,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:23:28,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:23:28,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:23:28,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,801 INFO L138 Inliner]: procedures = 137, calls = 226, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1147 [2024-11-02 12:23:28,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:23:28,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:23:28,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:23:28,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:23:28,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:23:28,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:23:28,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:23:28,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:23:28,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (1/1) ... [2024-11-02 12:23:28,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:28,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:23:28,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:23:28,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:23:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-02 12:23:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-02 12:23:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 12:23:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 12:23:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 12:23:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 12:23:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 12:23:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 12:23:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 12:23:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 12:23:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:23:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:23:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-02 12:23:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-02 12:23:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:23:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:23:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-02 12:23:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-02 12:23:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:23:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:23:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 12:23:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 12:23:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-02 12:23:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-02 12:23:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:23:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:23:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:23:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:23:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-02 12:23:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-02 12:23:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:23:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:23:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:23:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-02 12:23:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-02 12:23:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-02 12:23:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-02 12:23:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 12:23:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 12:23:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:23:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:23:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:23:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:23:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:23:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:23:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-02 12:23:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-02 12:23:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:23:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:23:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 12:23:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 12:23:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:23:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:23:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:23:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:23:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:23:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:23:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:23:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 12:23:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 12:23:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:23:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:23:29,381 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:23:29,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:23:30,864 INFO L? ?]: Removed 607 outVars from TransFormulas that were not future-live. [2024-11-02 12:23:30,864 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:23:31,720 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:23:31,721 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:23:31,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:31 BoogieIcfgContainer [2024-11-02 12:23:31,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:23:31,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:23:31,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:23:31,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:23:31,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:23:27" (1/3) ... [2024-11-02 12:23:31,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405a2cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:23:31, skipping insertion in model container [2024-11-02 12:23:31,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:23:28" (2/3) ... [2024-11-02 12:23:31,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405a2cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:23:31, skipping insertion in model container [2024-11-02 12:23:31,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:23:31" (3/3) ... [2024-11-02 12:23:31,732 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2024-11-02 12:23:31,754 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:23:31,754 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:23:31,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:23:31,864 INFO L333 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, 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;@72ad6f2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:23:31,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:23:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 139 states have internal predecessors, (172), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-02 12:23:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-02 12:23:31,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:23:31,896 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:23:31,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:23:31,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:23:31,905 INFO L85 PathProgramCache]: Analyzing trace with hash 372810013, now seen corresponding path program 1 times [2024-11-02 12:23:31,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:23:31,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705882078] [2024-11-02 12:23:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:31,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:23:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:23:32,474 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-02 12:23:32,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:23:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705882078] [2024-11-02 12:23:32,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705882078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:23:32,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:23:32,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:23:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930624815] [2024-11-02 12:23:32,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:23:32,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:23:32,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:23:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:23:32,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:23:32,526 INFO L87 Difference]: Start difference. First operand has 239 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 139 states have internal predecessors, (172), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:23:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:23:32,790 INFO L93 Difference]: Finished difference Result 386 states and 511 transitions. [2024-11-02 12:23:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:23:32,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2024-11-02 12:23:32,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:23:32,812 INFO L225 Difference]: With dead ends: 386 [2024-11-02 12:23:32,812 INFO L226 Difference]: Without dead ends: 236 [2024-11-02 12:23:32,820 INFO L431 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 [2024-11-02 12:23:32,824 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:23:32,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:23:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-02 12:23:32,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-02 12:23:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 136 states have internal predecessors, (166), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-02 12:23:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 313 transitions. [2024-11-02 12:23:32,905 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 313 transitions. Word has length 95 [2024-11-02 12:23:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:23:32,907 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 313 transitions. [2024-11-02 12:23:32,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:23:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 313 transitions. [2024-11-02 12:23:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-02 12:23:32,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:23:32,918 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:23:32,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:23:32,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:23:32,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:23:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1486145575, now seen corresponding path program 1 times [2024-11-02 12:23:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:23:32,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584141397] [2024-11-02 12:23:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:32,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:23:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:23:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-02 12:23:33,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:23:33,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584141397] [2024-11-02 12:23:33,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584141397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:23:33,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:23:33,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:23:33,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736334839] [2024-11-02 12:23:33,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:23:33,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:23:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:23:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:23:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:23:33,304 INFO L87 Difference]: Start difference. First operand 236 states and 313 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:23:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:23:33,523 INFO L93 Difference]: Finished difference Result 382 states and 496 transitions. [2024-11-02 12:23:33,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:23:33,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2024-11-02 12:23:33,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:23:33,527 INFO L225 Difference]: With dead ends: 382 [2024-11-02 12:23:33,527 INFO L226 Difference]: Without dead ends: 238 [2024-11-02 12:23:33,529 INFO L431 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 [2024-11-02 12:23:33,530 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:23:33,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 533 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:23:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-02 12:23:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2024-11-02 12:23:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 134 states have (on average 1.2537313432835822) internal successors, (168), 138 states have internal predecessors, (168), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-02 12:23:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2024-11-02 12:23:33,555 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 96 [2024-11-02 12:23:33,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:23:33,556 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2024-11-02 12:23:33,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:23:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2024-11-02 12:23:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 12:23:33,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:23:33,560 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:23:33,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:23:33,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:23:33,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:23:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1827157446, now seen corresponding path program 1 times [2024-11-02 12:23:33,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:23:33,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187336080] [2024-11-02 12:23:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:33,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:23:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:23:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-02 12:23:33,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:23:33,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187336080] [2024-11-02 12:23:33,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187336080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:23:33,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:23:33,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:23:33,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563822662] [2024-11-02 12:23:33,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:23:33,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:23:33,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:23:33,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:23:33,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:23:33,799 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:23:34,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:23:34,024 INFO L93 Difference]: Finished difference Result 511 states and 697 transitions. [2024-11-02 12:23:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:23:34,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 101 [2024-11-02 12:23:34,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:23:34,029 INFO L225 Difference]: With dead ends: 511 [2024-11-02 12:23:34,035 INFO L226 Difference]: Without dead ends: 291 [2024-11-02 12:23:34,036 INFO L431 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 [2024-11-02 12:23:34,039 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 59 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:23:34,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 540 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:23:34,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-02 12:23:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 286. [2024-11-02 12:23:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 168 states have (on average 1.3273809523809523) internal successors, (223), 172 states have internal predecessors, (223), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-02 12:23:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 398 transitions. [2024-11-02 12:23:34,114 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 398 transitions. Word has length 101 [2024-11-02 12:23:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:23:34,115 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 398 transitions. [2024-11-02 12:23:34,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:23:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 398 transitions. [2024-11-02 12:23:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-02 12:23:34,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:23:34,122 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:23:34,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:23:34,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:23:34,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:23:34,123 INFO L85 PathProgramCache]: Analyzing trace with hash 268654976, now seen corresponding path program 1 times [2024-11-02 12:23:34,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:23:34,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157607386] [2024-11-02 12:23:34,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:34,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:23:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:23:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-02 12:23:34,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:23:34,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157607386] [2024-11-02 12:23:34,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157607386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:23:34,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213457585] [2024-11-02 12:23:34,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:23:34,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:23:34,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:23:34,438 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:23:34,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2833e8c6-c7b0-495d-b11b-7a25fdde38cb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:23:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:23:34,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:23:34,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:23:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-02 12:23:35,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:23:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-02 12:23:35,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213457585] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:23:35,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1103245007] [2024-11-02 12:23:35,256 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2024-11-02 12:23:35,256 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:23:35,261 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:23:35,267 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:23:35,270 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs