./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product20.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_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/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_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/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_1739bcb3-4419-4192-9c19-d1915c7d0915/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 14180d3cb690799ed57b4096de70e545e9154e30692708de4df58b96eb76a2f0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:12,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:12,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:34:12,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:12,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:12,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:12,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:12,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:12,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:12,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:12,970 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:12,971 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:12,972 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:12,972 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:34:12,974 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:12,975 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:12,975 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:34:12,976 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:34:12,976 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:12,977 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:34:12,977 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:34:12,978 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:34:12,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:12,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:34:12,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:34:12,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:12,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:34:12,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:12,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:34:12,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:12,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:34:12,983 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:12,983 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:34:12,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:34:12,984 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:12,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:12,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:12,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:12,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:12,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:12,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:12,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:34:12,989 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:34:12,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:34:12,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:12,990 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:12,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:12,991 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_1739bcb3-4419-4192-9c19-d1915c7d0915/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14180d3cb690799ed57b4096de70e545e9154e30692708de4df58b96eb76a2f0 [2024-11-02 12:34:13,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:13,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:13,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:13,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:13,386 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:13,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/product-lines/email_spec8_product20.cil.c Unable to find full path for "g++" [2024-11-02 12:34:15,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:16,234 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:16,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c [2024-11-02 12:34:16,266 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/data/846cf9f3b/948b8b7a406e43099a529f5429b7d49d/FLAGc5750b434 [2024-11-02 12:34:16,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/data/846cf9f3b/948b8b7a406e43099a529f5429b7d49d [2024-11-02 12:34:16,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:16,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:16,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:16,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:16,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:16,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:16" (1/1) ... [2024-11-02 12:34:16,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5396129c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:16, skipping insertion in model container [2024-11-02 12:34:16,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:16" (1/1) ... [2024-11-02 12:34:16,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:16,905 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_1739bcb3-4419-4192-9c19-d1915c7d0915/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c[19452,19465] [2024-11-02 12:34:17,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:17,204 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:34:17,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-02 12:34:17,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [414] [2024-11-02 12:34:17,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [432] [2024-11-02 12:34:17,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [844] [2024-11-02 12:34:17,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [853] [2024-11-02 12:34:17,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1933] [2024-11-02 12:34:17,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1987] [2024-11-02 12:34:17,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2216] [2024-11-02 12:34:17,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2321] [2024-11-02 12:34:17,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2618] [2024-11-02 12:34:17,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2925] [2024-11-02 12:34:17,287 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_1739bcb3-4419-4192-9c19-d1915c7d0915/sv-benchmarks/c/product-lines/email_spec8_product20.cil.c[19452,19465] [2024-11-02 12:34:17,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:17,442 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:34:17,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17 WrapperNode [2024-11-02 12:34:17,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:17,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:17,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:34:17,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:34:17,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,620 INFO L138 Inliner]: procedures = 129, calls = 200, calls flagged for inlining = 56, calls inlined = 49, statements flattened = 966 [2024-11-02 12:34:17,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:17,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:34:17,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:34:17,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:34:17,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:34:17,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:34:17,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:34:17,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:34:17,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (1/1) ... [2024-11-02 12:34:17,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:17,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:17,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:34:17,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:34:17,829 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-02 12:34:17,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-02 12:34:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-02 12:34:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-02 12:34:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-02 12:34:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-02 12:34:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-02 12:34:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-02 12:34:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-02 12:34:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-02 12:34:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-02 12:34:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-02 12:34:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-02 12:34:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-02 12:34:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-02 12:34:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-02 12:34:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-02 12:34:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-02 12:34:17,838 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-02 12:34:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-02 12:34:17,838 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-02 12:34:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-02 12:34:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-02 12:34:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-02 12:34:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:34:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-02 12:34:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-02 12:34:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-02 12:34:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-02 12:34:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-02 12:34:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-02 12:34:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-02 12:34:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-02 12:34:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-02 12:34:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-02 12:34:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-02 12:34:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-02 12:34:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-02 12:34:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-02 12:34:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-02 12:34:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-02 12:34:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:34:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-02 12:34:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-02 12:34:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-02 12:34:17,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-02 12:34:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:34:17,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:34:18,156 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:34:18,159 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:34:19,837 INFO L? ?]: Removed 483 outVars from TransFormulas that were not future-live. [2024-11-02 12:34:19,837 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:34:20,843 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:34:20,843 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:34:20,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:20 BoogieIcfgContainer [2024-11-02 12:34:20,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:34:20,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:34:20,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:34:20,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:34:20,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:16" (1/3) ... [2024-11-02 12:34:20,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7259c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:20, skipping insertion in model container [2024-11-02 12:34:20,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:17" (2/3) ... [2024-11-02 12:34:20,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7259c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:20, skipping insertion in model container [2024-11-02 12:34:20,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:20" (3/3) ... [2024-11-02 12:34:20,854 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product20.cil.c [2024-11-02 12:34:20,880 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:34:20,880 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:34:20,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:34:21,003 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;@5bbe0c0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:34:21,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:34:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 12:34:21,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-02 12:34:21,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:21,029 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:21,030 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:34:21,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:21,037 INFO L85 PathProgramCache]: Analyzing trace with hash -389564570, now seen corresponding path program 1 times [2024-11-02 12:34:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:21,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610295135] [2024-11-02 12:34:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:21,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:34:21,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:21,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610295135] [2024-11-02 12:34:21,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610295135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:21,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:21,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:34:21,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698700919] [2024-11-02 12:34:21,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:21,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:34:21,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:21,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:34:21,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:34:21,590 INFO L87 Difference]: Start difference. First operand has 181 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:34:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:21,751 INFO L93 Difference]: Finished difference Result 270 states and 363 transitions. [2024-11-02 12:34:21,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:34:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2024-11-02 12:34:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:21,774 INFO L225 Difference]: With dead ends: 270 [2024-11-02 12:34:21,775 INFO L226 Difference]: Without dead ends: 178 [2024-11-02 12:34:21,780 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 12:34:21,785 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:21,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:34:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-02 12:34:21,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-02 12:34:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 101 states have (on average 1.306930693069307) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-02 12:34:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 239 transitions. [2024-11-02 12:34:21,856 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 239 transitions. Word has length 63 [2024-11-02 12:34:21,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:21,858 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 239 transitions. [2024-11-02 12:34:21,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:34:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 239 transitions. [2024-11-02 12:34:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-02 12:34:21,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:21,863 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:21,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:34:21,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:34:21,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:21,866 INFO L85 PathProgramCache]: Analyzing trace with hash 965947251, now seen corresponding path program 1 times [2024-11-02 12:34:21,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:21,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105807663] [2024-11-02 12:34:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:21,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:34:22,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:22,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105807663] [2024-11-02 12:34:22,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105807663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:22,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:22,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:34:22,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434070034] [2024-11-02 12:34:22,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:22,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:22,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:22,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:22,213 INFO L87 Difference]: Start difference. First operand 178 states and 239 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:34:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:22,394 INFO L93 Difference]: Finished difference Result 266 states and 348 transitions. [2024-11-02 12:34:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:22,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2024-11-02 12:34:22,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:22,399 INFO L225 Difference]: With dead ends: 266 [2024-11-02 12:34:22,399 INFO L226 Difference]: Without dead ends: 180 [2024-11-02 12:34:22,400 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 12:34:22,403 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:22,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:34:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-02 12:34:22,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-02 12:34:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-02 12:34:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 241 transitions. [2024-11-02 12:34:22,425 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 241 transitions. Word has length 64 [2024-11-02 12:34:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:22,425 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 241 transitions. [2024-11-02 12:34:22,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:34:22,426 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 241 transitions. [2024-11-02 12:34:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-02 12:34:22,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:22,428 INFO L215 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] [2024-11-02 12:34:22,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:34:22,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:34:22,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:22,430 INFO L85 PathProgramCache]: Analyzing trace with hash 840450378, now seen corresponding path program 1 times [2024-11-02 12:34:22,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:22,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716640970] [2024-11-02 12:34:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:22,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:34:22,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:22,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716640970] [2024-11-02 12:34:22,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716640970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:22,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:22,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:34:22,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159353205] [2024-11-02 12:34:22,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:22,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:22,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:22,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:22,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:22,587 INFO L87 Difference]: Start difference. First operand 180 states and 241 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:34:22,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:22,739 INFO L93 Difference]: Finished difference Result 395 states and 549 transitions. [2024-11-02 12:34:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:22,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2024-11-02 12:34:22,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:22,742 INFO L225 Difference]: With dead ends: 395 [2024-11-02 12:34:22,743 INFO L226 Difference]: Without dead ends: 233 [2024-11-02 12:34:22,744 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 12:34:22,745 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 59 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:22,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 413 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:34:22,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-02 12:34:22,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2024-11-02 12:34:22,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 141 states have internal predecessors, (189), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-02 12:34:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 324 transitions. [2024-11-02 12:34:22,768 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 324 transitions. Word has length 69 [2024-11-02 12:34:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:22,768 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 324 transitions. [2024-11-02 12:34:22,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:34:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 324 transitions. [2024-11-02 12:34:22,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-02 12:34:22,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:22,772 INFO L215 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] [2024-11-02 12:34:22,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:34:22,772 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:34:22,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash 983823940, now seen corresponding path program 1 times [2024-11-02 12:34:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340457235] [2024-11-02 12:34:22,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:34:22,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:22,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340457235] [2024-11-02 12:34:22,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340457235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:34:22,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568274613] [2024-11-02 12:34:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:22,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:34:22,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:22,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:34:22,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739bcb3-4419-4192-9c19-d1915c7d0915/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:34:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:23,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:34:23,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:34:23,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:34:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-02 12:34:23,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568274613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:34:23,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2002454568] [2024-11-02 12:34:23,690 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-02 12:34:23,690 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:34:23,694 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:34:23,700 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:34:23,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs