./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire --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 f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:34,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:34,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:34,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:34,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:34,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:34,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:34,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:34,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:34,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:34,512 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:34,512 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:34,513 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:34,514 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:34,514 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:34,515 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:34,516 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:34,516 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:34,517 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:34,518 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:34,518 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:34,519 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:34,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:34,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:34,522 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:34,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:34,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:34,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:34,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:34,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:34,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:34,527 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:34,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:34,528 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:34,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:34,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:34,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:34,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:34,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:34,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:34,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:34,532 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:34,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:34,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:34,533 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:34,533 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:34,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:34,534 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_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2023-11-23 20:33:34,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:34,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:34,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:34,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:34,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:34,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2023-11-23 20:33:38,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:38,560 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:38,560 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2023-11-23 20:33:38,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/data/a0257bb53/ad1851d4d0944d13bbd2cec56b72bbec/FLAGf4a5153c0 [2023-11-23 20:33:38,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/data/a0257bb53/ad1851d4d0944d13bbd2cec56b72bbec [2023-11-23 20:33:38,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:38,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:38,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:38,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:38,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:38,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8c0e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38, skipping insertion in model container [2023-11-23 20:33:38,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,711 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:38,962 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_97ad1520-436c-4840-829c-60632d0e5391/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2023-11-23 20:33:39,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:39,452 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:39,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-23 20:33:39,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [273] [2023-11-23 20:33:39,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [282] [2023-11-23 20:33:39,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [582] [2023-11-23 20:33:39,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [599] [2023-11-23 20:33:39,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1003] [2023-11-23 20:33:39,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1107] [2023-11-23 20:33:39,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2181] [2023-11-23 20:33:39,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2219] [2023-11-23 20:33:39,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2265] [2023-11-23 20:33:39,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2540] [2023-11-23 20:33:39,475 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_97ad1520-436c-4840-829c-60632d0e5391/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2023-11-23 20:33:39,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:39,595 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:39,603 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:39,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39 WrapperNode [2023-11-23 20:33:39,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:39,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:39,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:39,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:39,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,752 INFO L138 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 874 [2023-11-23 20:33:39,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:39,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:39,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:39,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:39,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:39,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:39,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:39,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:39,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (1/1) ... [2023-11-23 20:33:39,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:39,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:39,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:39,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 20:33:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 20:33:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 20:33:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 20:33:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 20:33:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 20:33:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 20:33:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 20:33:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 20:33:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 20:33:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 20:33:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 20:33:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 20:33:39,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 20:33:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 20:33:39,962 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 20:33:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 20:33:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 20:33:39,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 20:33:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 20:33:39,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 20:33:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 20:33:39,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 20:33:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 20:33:39,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 20:33:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 20:33:39,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 20:33:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 20:33:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 20:33:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 20:33:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 20:33:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 20:33:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 20:33:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 20:33:39,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 20:33:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 20:33:39,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 20:33:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 20:33:39,966 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 20:33:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:39,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:40,207 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:40,209 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:41,086 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:41,580 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:41,580 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:41,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:41 BoogieIcfgContainer [2023-11-23 20:33:41,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:41,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:41,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:41,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:41,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:38" (1/3) ... [2023-11-23 20:33:41,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b9729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:41, skipping insertion in model container [2023-11-23 20:33:41,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:39" (2/3) ... [2023-11-23 20:33:41,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b9729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:41, skipping insertion in model container [2023-11-23 20:33:41,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:41" (3/3) ... [2023-11-23 20:33:41,594 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2023-11-23 20:33:41,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:41,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:41,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:41,680 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;@5985741c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:41,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-23 20:33:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 20:33:41,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:41,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:41,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:41,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:41,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1587889573, now seen corresponding path program 1 times [2023-11-23 20:33:41,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563992451] [2023-11-23 20:33:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:41,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:42,236 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:33:42,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563992451] [2023-11-23 20:33:42,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563992451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:42,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:42,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:33:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294843071] [2023-11-23 20:33:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:42,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:33:42,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:33:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:33:42,305 INFO L87 Difference]: Start difference. First operand has 163 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 100 states have internal predecessors, (130), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:33:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:42,477 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2023-11-23 20:33:42,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:33:42,480 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2023-11-23 20:33:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:42,495 INFO L225 Difference]: With dead ends: 243 [2023-11-23 20:33:42,496 INFO L226 Difference]: Without dead ends: 160 [2023-11-23 20:33:42,502 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 [2023-11-23 20:33:42,510 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:42,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:33:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-23 20:33:42,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-23 20:33:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 97 states have internal predecessors, (124), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 20:33:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2023-11-23 20:33:42,579 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 72 [2023-11-23 20:33:42,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:42,581 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2023-11-23 20:33:42,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:33:42,581 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2023-11-23 20:33:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:33:42,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:42,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:42,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:33:42,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:42,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash -676987060, now seen corresponding path program 1 times [2023-11-23 20:33:42,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:42,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112618809] [2023-11-23 20:33:42,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:42,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:42,974 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:33:42,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:42,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112618809] [2023-11-23 20:33:42,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112618809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:42,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:42,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:42,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409634955] [2023-11-23 20:33:42,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:42,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:42,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:42,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:42,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:42,979 INFO L87 Difference]: Start difference. First operand 160 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:33:43,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:43,106 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2023-11-23 20:33:43,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:43,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 73 [2023-11-23 20:33:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:43,113 INFO L225 Difference]: With dead ends: 239 [2023-11-23 20:33:43,116 INFO L226 Difference]: Without dead ends: 162 [2023-11-23 20:33:43,117 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 [2023-11-23 20:33:43,120 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:43,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 371 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:33:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-23 20:33:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-23 20:33:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.3125) internal successors, (126), 99 states have internal predecessors, (126), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 20:33:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2023-11-23 20:33:43,151 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 73 [2023-11-23 20:33:43,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:43,153 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2023-11-23 20:33:43,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:33:43,154 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2023-11-23 20:33:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 20:33:43,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:43,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:33:43,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:43,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1781198222, now seen corresponding path program 1 times [2023-11-23 20:33:43,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:43,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361496904] [2023-11-23 20:33:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:43,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:33:43,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:43,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361496904] [2023-11-23 20:33:43,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361496904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:43,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:43,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:43,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134764385] [2023-11-23 20:33:43,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:43,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:43,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:43,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:43,387 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:33:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:43,540 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2023-11-23 20:33:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2023-11-23 20:33:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:43,544 INFO L225 Difference]: With dead ends: 354 [2023-11-23 20:33:43,544 INFO L226 Difference]: Without dead ends: 210 [2023-11-23 20:33:43,546 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 [2023-11-23 20:33:43,548 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 57 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:43,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 381 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:33:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-23 20:33:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2023-11-23 20:33:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 128 states have (on average 1.3984375) internal successors, (179), 131 states have internal predecessors, (179), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-23 20:33:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2023-11-23 20:33:43,574 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 78 [2023-11-23 20:33:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:43,575 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2023-11-23 20:33:43,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 20:33:43,576 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2023-11-23 20:33:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 20:33:43,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:43,581 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:43,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:33:43,582 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:43,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2070974351, now seen corresponding path program 1 times [2023-11-23 20:33:43,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:43,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949349322] [2023-11-23 20:33:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:43,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:33:43,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949349322] [2023-11-23 20:33:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949349322] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369529262] [2023-11-23 20:33:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:43,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:43,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:43,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:43,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ad1520-436c-4840-829c-60632d0e5391/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:33:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:44,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:33:44,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:33:44,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:44,490 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:33:44,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369529262] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:44,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [483923639] [2023-11-23 20:33:44,521 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2023-11-23 20:33:44,522 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 20:33:44,526 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 20:33:44,533 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 20:33:44,535 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 20:34:29,291 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-11-23 20:34:29,545 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2023-11-23 20:34:29,815 INFO L180 IcfgInterpreter]: Interpretation finished