./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product34.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_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/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_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/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_195115d5-4304-4067-986f-a662723ac13a/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 f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:30,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:30,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:15:30,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:30,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:30,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:30,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:30,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:30,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:30,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:30,453 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:30,454 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:30,454 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:30,456 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:30,457 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:30,457 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:30,458 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:30,458 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:30,459 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:30,459 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:30,460 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:30,461 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:30,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:30,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:30,463 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:15:30,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:30,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:15:30,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:30,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:30,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:30,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:30,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:15:30,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:30,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:30,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:30,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:30,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:30,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:30,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:30,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:30,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:30,471 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:30,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:30,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:30,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:30,473 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:30,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:30,473 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_195115d5-4304-4067-986f-a662723ac13a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f84999f0f81e33d8d10765588f1ef0eb7f6e4b27122985f82c092211345428dc [2023-11-23 21:15:30,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:30,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:30,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:30,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:30,863 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:30,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2023-11-23 21:15:33,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:34,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:34,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c [2023-11-23 21:15:34,435 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/data/1009e6ea5/b84e794ffd4d4ca69466fa309a1e60dc/FLAG2f59c9ef0 [2023-11-23 21:15:34,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/data/1009e6ea5/b84e794ffd4d4ca69466fa309a1e60dc [2023-11-23 21:15:34,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:34,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:34,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:34,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:34,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:34,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:34" (1/1) ... [2023-11-23 21:15:34,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ec579f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:34, skipping insertion in model container [2023-11-23 21:15:34,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:34" (1/1) ... [2023-11-23 21:15:34,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:34,821 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_195115d5-4304-4067-986f-a662723ac13a/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2023-11-23 21:15:35,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:35,270 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:35,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-23 21:15:35,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [277] [2023-11-23 21:15:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [334] [2023-11-23 21:15:35,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [343] [2023-11-23 21:15:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [490] [2023-11-23 21:15:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [507] [2023-11-23 21:15:35,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [909] [2023-11-23 21:15:35,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1275] [2023-11-23 21:15:35,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2355] [2023-11-23 21:15:35,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2761] [2023-11-23 21:15:35,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2799] [2023-11-23 21:15:35,307 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_195115d5-4304-4067-986f-a662723ac13a/sv-benchmarks/c/product-lines/email_spec9_product34.cil.c[8301,8314] [2023-11-23 21:15:35,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:35,486 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:35,494 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:35,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35 WrapperNode [2023-11-23 21:15:35,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:35,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:35,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:35,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:35,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,614 INFO L138 Inliner]: procedures = 135, calls = 242, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1120 [2023-11-23 21:15:35,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:35,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:35,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:35,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:35,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:35,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:35,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:35,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:35,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (1/1) ... [2023-11-23 21:15:35,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:35,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:35,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:35,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:15:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:15:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-23 21:15:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-23 21:15:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:15:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:15:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-23 21:15:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-23 21:15:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:15:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:15:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:15:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:15:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:15:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:15:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:15:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:15:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:15:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:15:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:15:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:15:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:15:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:15:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:15:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:15:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:15:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:15:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:15:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:15:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:15:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:15:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:15:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:15:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:15:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-23 21:15:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-23 21:15:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:15:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:15:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:15:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:15:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:15:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:15:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-11-23 21:15:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-11-23 21:15:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:15:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:15:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:15:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:15:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:15:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:15:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:15:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:15:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:15:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:15:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:15:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:15:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-23 21:15:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-23 21:15:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:36,090 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:36,093 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:37,117 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:37,815 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:37,815 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:15:37,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:37 BoogieIcfgContainer [2023-11-23 21:15:37,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:37,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:37,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:37,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:37,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:34" (1/3) ... [2023-11-23 21:15:37,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742f1122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:37, skipping insertion in model container [2023-11-23 21:15:37,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:35" (2/3) ... [2023-11-23 21:15:37,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742f1122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:37, skipping insertion in model container [2023-11-23 21:15:37,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:37" (3/3) ... [2023-11-23 21:15:37,827 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product34.cil.c [2023-11-23 21:15:37,846 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:37,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:15:37,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:37,910 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;@22b48f9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:37,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:15:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-23 21:15:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:15:37,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:37,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:37,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:37,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash -93352785, now seen corresponding path program 1 times [2023-11-23 21:15:37,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:37,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358362886] [2023-11-23 21:15:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:37,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:15:38,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:38,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358362886] [2023-11-23 21:15:38,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358362886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:38,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:38,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:15:38,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134720380] [2023-11-23 21:15:38,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:38,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:15:38,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:38,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:15:38,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:15:38,489 INFO L87 Difference]: Start difference. First operand has 231 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 135 states have internal predecessors, (168), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:15:38,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:38,657 INFO L93 Difference]: Finished difference Result 370 states and 491 transitions. [2023-11-23 21:15:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:15:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-11-23 21:15:38,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:38,674 INFO L225 Difference]: With dead ends: 370 [2023-11-23 21:15:38,674 INFO L226 Difference]: Without dead ends: 228 [2023-11-23 21:15:38,681 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 21:15:38,685 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:38,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:38,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-11-23 21:15:38,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2023-11-23 21:15:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 128 states have (on average 1.265625) internal successors, (162), 132 states have internal predecessors, (162), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-23 21:15:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 303 transitions. [2023-11-23 21:15:38,753 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 303 transitions. Word has length 71 [2023-11-23 21:15:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:38,755 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 303 transitions. [2023-11-23 21:15:38,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:15:38,756 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 303 transitions. [2023-11-23 21:15:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:15:38,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:38,761 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:38,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:15:38,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:38,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:38,762 INFO L85 PathProgramCache]: Analyzing trace with hash -389873930, now seen corresponding path program 1 times [2023-11-23 21:15:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:38,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921721432] [2023-11-23 21:15:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:38,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:15:39,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:39,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921721432] [2023-11-23 21:15:39,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921721432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:39,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:39,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:39,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74695233] [2023-11-23 21:15:39,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:39,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:39,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:39,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:39,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:39,128 INFO L87 Difference]: Start difference. First operand 228 states and 303 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:15:39,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:39,336 INFO L93 Difference]: Finished difference Result 366 states and 476 transitions. [2023-11-23 21:15:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:39,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2023-11-23 21:15:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:39,347 INFO L225 Difference]: With dead ends: 366 [2023-11-23 21:15:39,347 INFO L226 Difference]: Without dead ends: 230 [2023-11-23 21:15:39,353 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 21:15:39,355 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:39,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-23 21:15:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2023-11-23 21:15:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 71 states have call successors, (71), 28 states have call predecessors, (71), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-23 21:15:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 305 transitions. [2023-11-23 21:15:39,427 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 305 transitions. Word has length 72 [2023-11-23 21:15:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:39,428 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 305 transitions. [2023-11-23 21:15:39,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:15:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 305 transitions. [2023-11-23 21:15:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 21:15:39,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:39,433 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] [2023-11-23 21:15:39,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:15:39,434 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:39,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:39,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1358060575, now seen corresponding path program 1 times [2023-11-23 21:15:39,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:39,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021264162] [2023-11-23 21:15:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:39,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:15:39,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:39,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021264162] [2023-11-23 21:15:39,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021264162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:39,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:39,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:39,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348701851] [2023-11-23 21:15:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:39,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:39,663 INFO L87 Difference]: Start difference. First operand 230 states and 305 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:15:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:39,885 INFO L93 Difference]: Finished difference Result 495 states and 677 transitions. [2023-11-23 21:15:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:15:39,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-11-23 21:15:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:39,900 INFO L225 Difference]: With dead ends: 495 [2023-11-23 21:15:39,900 INFO L226 Difference]: Without dead ends: 283 [2023-11-23 21:15:39,902 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 21:15:39,903 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 59 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:39,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 528 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:15:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-23 21:15:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2023-11-23 21:15:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 164 states have (on average 1.3353658536585367) internal successors, (219), 168 states have internal predecessors, (219), 85 states have call successors, (85), 28 states have call predecessors, (85), 28 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-23 21:15:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 388 transitions. [2023-11-23 21:15:39,933 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 388 transitions. Word has length 77 [2023-11-23 21:15:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:39,933 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 388 transitions. [2023-11-23 21:15:39,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:15:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 388 transitions. [2023-11-23 21:15:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 21:15:39,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:39,939 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] [2023-11-23 21:15:39,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:15:39,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:39,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash 760430797, now seen corresponding path program 1 times [2023-11-23 21:15:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945232350] [2023-11-23 21:15:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:39,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:15:40,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:40,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945232350] [2023-11-23 21:15:40,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945232350] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:15:40,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771726106] [2023-11-23 21:15:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:40,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:15:40,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:40,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:15:40,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195115d5-4304-4067-986f-a662723ac13a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:15:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:40,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:15:40,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:15:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:15:40,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:15:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:15:40,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771726106] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:15:40,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2088884187] [2023-11-23 21:15:40,872 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-11-23 21:15:40,872 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:15:40,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:15:40,883 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:15:40,884 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs