./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX --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 cecb11257778d17777e5c48cccb3bea71da01aa9ce120079a5b602041abb00f4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:32,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:32,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 01:02:32,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:32,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:32,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:32,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:32,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:32,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:32,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:32,641 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:32,642 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:32,642 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:32,644 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:32,644 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:32,645 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:32,645 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:32,646 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:32,646 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:32,647 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:32,647 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:32,648 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:32,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:32,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:32,650 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:32,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:32,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:32,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:32,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:32,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:32,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:32,654 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:32,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:32,654 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:32,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:32,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:32,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:32,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:32,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:32,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:32,656 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:32,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:32,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:32,657 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:32,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:32,658 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_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cecb11257778d17777e5c48cccb3bea71da01aa9ce120079a5b602041abb00f4 [2023-11-12 01:02:32,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:32,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:32,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:32,955 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:32,956 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:32,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/product-lines/email_spec1_product21.cil.c [2023-11-12 01:02:36,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:36,342 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:36,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c [2023-11-12 01:02:36,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/data/1429ec5e7/89e680d68f9d451587ff9d9d04222b8f/FLAG65cb4c067 [2023-11-12 01:02:36,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/data/1429ec5e7/89e680d68f9d451587ff9d9d04222b8f [2023-11-12 01:02:36,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:36,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:36,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:36,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:36,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:36,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d590420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:36, skipping insertion in model container [2023-11-12 01:02:36,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:36" (1/1) ... [2023-11-12 01:02:36,508 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:37,221 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c[63391,63404] [2023-11-12 01:02:37,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:37,254 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:37,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [48] [2023-11-12 01:02:37,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [90] [2023-11-12 01:02:37,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [501] [2023-11-12 01:02:37,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [730] [2023-11-12 01:02:37,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [836] [2023-11-12 01:02:37,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [853] [2023-11-12 01:02:37,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1219] [2023-11-12 01:02:37,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1257] [2023-11-12 01:02:37,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1577] [2023-11-12 01:02:37,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2649] [2023-11-12 01:02:37,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2937] [2023-11-12 01:02:37,443 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/sv-benchmarks/c/product-lines/email_spec1_product21.cil.c[63391,63404] [2023-11-12 01:02:37,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:37,482 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:02:37,490 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:37,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37 WrapperNode [2023-11-12 01:02:37,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:37,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:37,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:37,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:37,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,601 INFO L138 Inliner]: procedures = 128, calls = 215, calls flagged for inlining = 57, calls inlined = 54, statements flattened = 1068 [2023-11-12 01:02:37,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:37,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:37,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:37,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:37,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:37,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:37,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:37,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:37,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (1/1) ... [2023-11-12 01:02:37,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:37,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:37,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:37,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-12 01:02:37,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-12 01:02:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-12 01:02:37,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-12 01:02:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-12 01:02:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-12 01:02:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-12 01:02:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-12 01:02:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-12 01:02:37,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-12 01:02:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-12 01:02:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-12 01:02:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-12 01:02:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-12 01:02:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-12 01:02:37,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-12 01:02:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-12 01:02:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-12 01:02:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-12 01:02:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-12 01:02:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-12 01:02:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-12 01:02:37,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-12 01:02:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-12 01:02:37,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-12 01:02:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-12 01:02:37,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-12 01:02:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-12 01:02:37,913 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-12 01:02:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-12 01:02:37,914 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-12 01:02:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-12 01:02:37,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-12 01:02:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-12 01:02:37,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-12 01:02:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-12 01:02:37,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-12 01:02:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-12 01:02:37,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-12 01:02:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-12 01:02:37,916 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-12 01:02:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-12 01:02:37,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-12 01:02:37,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:37,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:38,207 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:38,210 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:39,382 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:40,128 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:40,129 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:02:40,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:40 BoogieIcfgContainer [2023-11-12 01:02:40,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:40,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:40,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:40,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:40,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:36" (1/3) ... [2023-11-12 01:02:40,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a06f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:40, skipping insertion in model container [2023-11-12 01:02:40,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:37" (2/3) ... [2023-11-12 01:02:40,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a06f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:40, skipping insertion in model container [2023-11-12 01:02:40,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:40" (3/3) ... [2023-11-12 01:02:40,141 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product21.cil.c [2023-11-12 01:02:40,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:40,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:02:40,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:40,224 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6600c610, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:40,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:02:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-12 01:02:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-12 01:02:40,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:40,245 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:40,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:40,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash -993584069, now seen corresponding path program 1 times [2023-11-12 01:02:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:40,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027414480] [2023-11-12 01:02:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:40,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 01:02:40,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:40,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027414480] [2023-11-12 01:02:40,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027414480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:40,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:40,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:40,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932394242] [2023-11-12 01:02:40,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:40,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:02:40,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:02:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:40,788 INFO L87 Difference]: Start difference. First operand has 185 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 110 states have internal predecessors, (140), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) 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) [2023-11-12 01:02:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:40,937 INFO L93 Difference]: Finished difference Result 278 states and 379 transitions. [2023-11-12 01:02:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:02:40,940 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 [2023-11-12 01:02:40,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:40,954 INFO L225 Difference]: With dead ends: 278 [2023-11-12 01:02:40,954 INFO L226 Difference]: Without dead ends: 182 [2023-11-12 01:02:40,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:40,964 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:40,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-12 01:02:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-12 01:02:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 107 states have internal predecessors, (134), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-12 01:02:41,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2023-11-12 01:02:41,032 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 63 [2023-11-12 01:02:41,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:41,034 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2023-11-12 01:02:41,035 INFO L496 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) [2023-11-12 01:02:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2023-11-12 01:02:41,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 01:02:41,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:41,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:41,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:02:41,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:41,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash -493002669, now seen corresponding path program 1 times [2023-11-12 01:02:41,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:41,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133414414] [2023-11-12 01:02:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:41,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 01:02:41,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133414414] [2023-11-12 01:02:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133414414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:41,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:41,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83427529] [2023-11-12 01:02:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:41,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:41,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:41,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:41,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:41,355 INFO L87 Difference]: Start difference. First operand 182 states and 247 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) [2023-11-12 01:02:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:41,491 INFO L93 Difference]: Finished difference Result 274 states and 364 transitions. [2023-11-12 01:02:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:41,492 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 [2023-11-12 01:02:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:41,496 INFO L225 Difference]: With dead ends: 274 [2023-11-12 01:02:41,496 INFO L226 Difference]: Without dead ends: 184 [2023-11-12 01:02:41,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:41,500 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:41,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:41,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-12 01:02:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-12 01:02:41,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 109 states have internal predecessors, (136), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-12 01:02:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2023-11-12 01:02:41,535 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 64 [2023-11-12 01:02:41,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:41,535 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2023-11-12 01:02:41,535 INFO L496 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) [2023-11-12 01:02:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2023-11-12 01:02:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-12 01:02:41,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:41,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:41,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:02:41,550 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:41,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 96516420, now seen corresponding path program 1 times [2023-11-12 01:02:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346847745] [2023-11-12 01:02:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 01:02:41,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:41,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346847745] [2023-11-12 01:02:41,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346847745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:41,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:41,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:41,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444457613] [2023-11-12 01:02:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:41,722 INFO L87 Difference]: Start difference. First operand 184 states and 249 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) [2023-11-12 01:02:41,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:41,863 INFO L93 Difference]: Finished difference Result 403 states and 565 transitions. [2023-11-12 01:02:41,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:41,864 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 [2023-11-12 01:02:41,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:41,867 INFO L225 Difference]: With dead ends: 403 [2023-11-12 01:02:41,868 INFO L226 Difference]: Without dead ends: 237 [2023-11-12 01:02:41,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:41,877 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 59 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:41,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 428 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:41,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-12 01:02:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2023-11-12 01:02:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.3741007194244603) internal successors, (191), 143 states have internal predecessors, (191), 71 states have call successors, (71), 21 states have call predecessors, (71), 21 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-12 01:02:41,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 332 transitions. [2023-11-12 01:02:41,928 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 332 transitions. Word has length 69 [2023-11-12 01:02:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:41,930 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 332 transitions. [2023-11-12 01:02:41,931 INFO L496 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) [2023-11-12 01:02:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 332 transitions. [2023-11-12 01:02:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-12 01:02:41,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:41,938 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:41,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:02:41,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:41,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1853350880, now seen corresponding path program 1 times [2023-11-12 01:02:41,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:41,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47315218] [2023-11-12 01:02:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:41,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 01:02:42,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:42,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47315218] [2023-11-12 01:02:42,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47315218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:02:42,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144644069] [2023-11-12 01:02:42,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:42,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:42,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:42,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:42,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153acbb0-4369-47f3-b0c0-95631fed127e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:02:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:42,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 01:02:42,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 01:02:42,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:02:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 01:02:42,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144644069] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:02:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [739239358] [2023-11-12 01:02:42,866 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-11-12 01:02:42,866 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 01:02:42,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 01:02:42,877 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 01:02:42,879 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs