./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/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_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/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_274e74a1-7229-4821-b23a-fe0f991e3af9/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 bcfdffd5743ab46e6f5628bffe82029f1c91fa1aa61e5033c157235a6e9c82be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:56,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:56,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:15:56,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:56,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:56,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:56,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:56,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:56,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:56,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:56,650 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:56,650 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:56,651 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:56,651 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:56,652 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:56,653 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:56,653 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:56,654 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:56,654 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:56,655 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:56,656 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:56,657 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:56,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:56,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:56,658 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:15:56,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:56,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:15:56,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:56,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:56,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:56,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:56,668 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:15:56,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:56,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:56,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:56,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:56,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:56,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:56,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:56,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:56,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:56,675 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:56,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:56,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:56,676 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:56,676 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:56,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:56,677 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_274e74a1-7229-4821-b23a-fe0f991e3af9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcfdffd5743ab46e6f5628bffe82029f1c91fa1aa61e5033c157235a6e9c82be [2023-11-23 21:15:56,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:57,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:57,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:57,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:57,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:57,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c [2023-11-23 21:16:00,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:00,600 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:00,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c [2023-11-23 21:16:00,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/data/650945191/dd7a51766ebf4d64893b4101c5530636/FLAG6f307e3d2 [2023-11-23 21:16:00,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/data/650945191/dd7a51766ebf4d64893b4101c5530636 [2023-11-23 21:16:00,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:00,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:00,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:00,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:00,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:00,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:00,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d90022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00, skipping insertion in model container [2023-11-23 21:16:00,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:00,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:01,202 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_274e74a1-7229-4821-b23a-fe0f991e3af9/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c[43937,43950] [2023-11-23 21:16:01,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:01,361 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:01,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-23 21:16:01,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [368] [2023-11-23 21:16:01,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [419] [2023-11-23 21:16:01,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1488] [2023-11-23 21:16:01,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1523] [2023-11-23 21:16:01,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1803] [2023-11-23 21:16:01,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2019] [2023-11-23 21:16:01,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2036] [2023-11-23 21:16:01,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2045] [2023-11-23 21:16:01,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2151] [2023-11-23 21:16:01,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2517] [2023-11-23 21:16:01,549 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_274e74a1-7229-4821-b23a-fe0f991e3af9/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c[43937,43950] [2023-11-23 21:16:01,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:01,639 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:01,647 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:01,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01 WrapperNode [2023-11-23 21:16:01,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:01,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:01,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:01,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:01,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,763 INFO L138 Inliner]: procedures = 126, calls = 212, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 888 [2023-11-23 21:16:01,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:01,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:01,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:01,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:01,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:01,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:01,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:01,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:01,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (1/1) ... [2023-11-23 21:16:01,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:01,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:01,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:01,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:16:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:16:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-23 21:16:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-23 21:16:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:16:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:16:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-23 21:16:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-23 21:16:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:16:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:16:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:16:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:16:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:16:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:16:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:16:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:16:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:16:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:16:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:16:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:16:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:16:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:16:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:16:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:16:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:16:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-23 21:16:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-23 21:16:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:16:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:16:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:16:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:16:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:16:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:16:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-23 21:16:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-23 21:16:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:16:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:16:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:16:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:16:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:16:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:16:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:16:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:16:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:16:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:16:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-23 21:16:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-23 21:16:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:02,196 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:02,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:03,174 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:03,783 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:03,783 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:03,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:03 BoogieIcfgContainer [2023-11-23 21:16:03,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:03,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:03,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:03,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:03,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:00" (1/3) ... [2023-11-23 21:16:03,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1a87d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:03, skipping insertion in model container [2023-11-23 21:16:03,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:01" (2/3) ... [2023-11-23 21:16:03,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1a87d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:03, skipping insertion in model container [2023-11-23 21:16:03,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:03" (3/3) ... [2023-11-23 21:16:03,795 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product14.cil.c [2023-11-23 21:16:03,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:03,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:03,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:03,885 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;@2a812114, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:03,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 109 states have internal predecessors, (138), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-23 21:16:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:16:03,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:03,911 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:03,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:03,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:03,918 INFO L85 PathProgramCache]: Analyzing trace with hash 831501354, now seen corresponding path program 1 times [2023-11-23 21:16:03,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:03,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034866788] [2023-11-23 21:16:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:03,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:04,465 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 21:16:04,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:04,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034866788] [2023-11-23 21:16:04,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034866788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:04,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:04,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829690146] [2023-11-23 21:16:04,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:04,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:16:04,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:04,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:16:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:04,538 INFO L87 Difference]: Start difference. First operand has 185 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 109 states have internal predecessors, (138), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:16:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:04,682 INFO L93 Difference]: Finished difference Result 278 states and 371 transitions. [2023-11-23 21:16:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:16:04,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 79 [2023-11-23 21:16:04,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:04,698 INFO L225 Difference]: With dead ends: 278 [2023-11-23 21:16:04,699 INFO L226 Difference]: Without dead ends: 182 [2023-11-23 21:16:04,704 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 21:16:04,708 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:04,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-23 21:16:04,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-23 21:16:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 106 states have internal predecessors, (132), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-23 21:16:04,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 243 transitions. [2023-11-23 21:16:04,800 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 243 transitions. Word has length 79 [2023-11-23 21:16:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:04,803 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 243 transitions. [2023-11-23 21:16:04,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:16:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 243 transitions. [2023-11-23 21:16:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:16:04,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:04,818 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:04,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:04,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:04,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:04,820 INFO L85 PathProgramCache]: Analyzing trace with hash -978422002, now seen corresponding path program 1 times [2023-11-23 21:16:04,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:04,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922960850] [2023-11-23 21:16:04,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:05,166 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 21:16:05,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:05,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922960850] [2023-11-23 21:16:05,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922960850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:05,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:05,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:05,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875012084] [2023-11-23 21:16:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:05,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:05,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:05,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:05,178 INFO L87 Difference]: Start difference. First operand 182 states and 243 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:16:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:05,369 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2023-11-23 21:16:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:05,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 80 [2023-11-23 21:16:05,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:05,372 INFO L225 Difference]: With dead ends: 274 [2023-11-23 21:16:05,373 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 21:16:05,375 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 21:16:05,376 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:05,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:05,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 21:16:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 21:16:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 108 states have internal predecessors, (134), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-23 21:16:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 245 transitions. [2023-11-23 21:16:05,398 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 245 transitions. Word has length 80 [2023-11-23 21:16:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:05,398 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 245 transitions. [2023-11-23 21:16:05,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:16:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 245 transitions. [2023-11-23 21:16:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:16:05,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:05,401 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:05,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:05,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:05,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:05,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2033354209, now seen corresponding path program 1 times [2023-11-23 21:16:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:05,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016565444] [2023-11-23 21:16:05,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:05,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:05,528 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 21:16:05,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:05,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016565444] [2023-11-23 21:16:05,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016565444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:05,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:05,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:05,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221935147] [2023-11-23 21:16:05,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:05,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:05,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:05,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:05,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:05,532 INFO L87 Difference]: Start difference. First operand 184 states and 245 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:16:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:05,663 INFO L93 Difference]: Finished difference Result 403 states and 557 transitions. [2023-11-23 21:16:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2023-11-23 21:16:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:05,668 INFO L225 Difference]: With dead ends: 403 [2023-11-23 21:16:05,668 INFO L226 Difference]: Without dead ends: 237 [2023-11-23 21:16:05,670 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 21:16:05,672 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 59 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:05,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-23 21:16:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2023-11-23 21:16:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 138 states have (on average 1.3695652173913044) internal successors, (189), 142 states have internal predecessors, (189), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-23 21:16:05,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2023-11-23 21:16:05,718 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 85 [2023-11-23 21:16:05,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:05,720 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2023-11-23 21:16:05,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:16:05,722 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2023-11-23 21:16:05,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:16:05,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:05,727 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:05,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:16:05,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:05,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:05,729 INFO L85 PathProgramCache]: Analyzing trace with hash 318237201, now seen corresponding path program 1 times [2023-11-23 21:16:05,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:05,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267820416] [2023-11-23 21:16:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:05,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:06,065 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 21:16:06,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:06,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267820416] [2023-11-23 21:16:06,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267820416] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:06,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303548356] [2023-11-23 21:16:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:06,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:06,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:06,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:06,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274e74a1-7229-4821-b23a-fe0f991e3af9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:06,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:06,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:06,535 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 21:16:06,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:16:06,637 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 21:16:06,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303548356] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:16:06,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2116055553] [2023-11-23 21:16:06,667 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2023-11-23 21:16:06,667 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:16:06,678 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:16:06,684 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:16:06,685 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:16:59,650 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-11-23 21:16:59,992 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs