./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product30.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_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/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_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/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_a6844a44-1464-4e40-9a35-4c61d8a63e89/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 e931bf8fe4413228ccd3caf40302412c554842907046b600d394a87eb5d13e97 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:00,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:00,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:00,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:00,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:00,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:00,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:00,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:00,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:00,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:00,383 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:00,384 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:00,385 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:00,387 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:00,387 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:00,388 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:00,388 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:00,389 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:00,389 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:00,390 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:00,390 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:00,391 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:00,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:00,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:00,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:00,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:00,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:00,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:00,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:00,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:00,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:00,397 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:00,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:00,398 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:00,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:00,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:00,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:00,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:00,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:00,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:00,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:00,400 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:00,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:00,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:00,401 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:00,402 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:00,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:00,402 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_a6844a44-1464-4e40-9a35-4c61d8a63e89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e931bf8fe4413228ccd3caf40302412c554842907046b600d394a87eb5d13e97 [2023-11-23 21:16:00,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:00,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:00,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:00,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:00,809 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:00,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec9_product30.cil.c [2023-11-23 21:16:04,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:04,467 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:04,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/sv-benchmarks/c/product-lines/email_spec9_product30.cil.c [2023-11-23 21:16:04,494 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/data/971a78852/97156748475348cfb88fd53cfce5b1c9/FLAGf625b930a [2023-11-23 21:16:04,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/data/971a78852/97156748475348cfb88fd53cfce5b1c9 [2023-11-23 21:16:04,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:04,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:04,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:04,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:04,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:04,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:04" (1/1) ... [2023-11-23 21:16:04,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e05669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:04, skipping insertion in model container [2023-11-23 21:16:04,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:04" (1/1) ... [2023-11-23 21:16:04,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:05,272 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_a6844a44-1464-4e40-9a35-4c61d8a63e89/sv-benchmarks/c/product-lines/email_spec9_product30.cil.c[41508,41521] [2023-11-23 21:16:05,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:05,437 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:05,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-23 21:16:05,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [363] [2023-11-23 21:16:05,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [740] [2023-11-23 21:16:05,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [878] [2023-11-23 21:16:05,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1945] [2023-11-23 21:16:05,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1980] [2023-11-23 21:16:05,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [1989] [2023-11-23 21:16:05,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2031] [2023-11-23 21:16:05,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2048] [2023-11-23 21:16:05,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2445] [2023-11-23 21:16:05,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2811] [2023-11-23 21:16:05,569 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_a6844a44-1464-4e40-9a35-4c61d8a63e89/sv-benchmarks/c/product-lines/email_spec9_product30.cil.c[41508,41521] [2023-11-23 21:16:05,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:05,678 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:05,687 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:05,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05 WrapperNode [2023-11-23 21:16:05,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:05,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:05,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:05,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:05,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,823 INFO L138 Inliner]: procedures = 132, calls = 223, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 933 [2023-11-23 21:16:05,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:05,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:05,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:05,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:05,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:05,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:05,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:05,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:05,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (1/1) ... [2023-11-23 21:16:05,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:05,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:05,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:06,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:16:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:16:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:16:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:16:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:16:06,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:16:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:16:06,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:16:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:16:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:16:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:16:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:16:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:16:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:16:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:16:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:16:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:16:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:16:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:16:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:16:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:16:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:16:06,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:16:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:16:06,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:16:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:16:06,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:16:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:16:06,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:16:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:16:06,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:16:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:16:06,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:16:06,085 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:16:06,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:16:06,085 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:16:06,085 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:16:06,085 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:16:06,086 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:16:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:16:06,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:16:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:16:06,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:16:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:16:06,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:16:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:16:06,089 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:16:06,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:06,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:06,351 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:06,354 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:07,438 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:08,118 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:08,118 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:08,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:08 BoogieIcfgContainer [2023-11-23 21:16:08,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:08,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:08,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:08,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:08,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:04" (1/3) ... [2023-11-23 21:16:08,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c652778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:08, skipping insertion in model container [2023-11-23 21:16:08,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:05" (2/3) ... [2023-11-23 21:16:08,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c652778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:08, skipping insertion in model container [2023-11-23 21:16:08,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:08" (3/3) ... [2023-11-23 21:16:08,134 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product30.cil.c [2023-11-23 21:16:08,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:08,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:08,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:08,235 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;@2e9f470b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:08,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:08,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-23 21:16:08,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 21:16:08,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:08,258 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:08,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:08,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:08,265 INFO L85 PathProgramCache]: Analyzing trace with hash -399898636, now seen corresponding path program 1 times [2023-11-23 21:16:08,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:08,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394801823] [2023-11-23 21:16:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:08,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:08,863 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 21:16:08,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394801823] [2023-11-23 21:16:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394801823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698421938] [2023-11-23 21:16:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:08,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:16:08,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:08,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:16:08,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:08,932 INFO L87 Difference]: Start difference. First operand has 189 states, 111 states have (on average 1.3333333333333333) internal successors, (148), 115 states have internal predecessors, (148), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:16:09,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:09,140 INFO L93 Difference]: Finished difference Result 295 states and 386 transitions. [2023-11-23 21:16:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:16:09,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2023-11-23 21:16:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:09,163 INFO L225 Difference]: With dead ends: 295 [2023-11-23 21:16:09,164 INFO L226 Difference]: Without dead ends: 186 [2023-11-23 21:16:09,175 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 21:16:09,182 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:09,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-23 21:16:09,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-23 21:16:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 112 states have internal predecessors, (142), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-23 21:16:09,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 247 transitions. [2023-11-23 21:16:09,266 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 247 transitions. Word has length 64 [2023-11-23 21:16:09,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:09,268 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 247 transitions. [2023-11-23 21:16:09,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:16:09,269 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 247 transitions. [2023-11-23 21:16:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 21:16:09,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:09,275 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] [2023-11-23 21:16:09,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:09,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:09,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash 144320955, now seen corresponding path program 1 times [2023-11-23 21:16:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811738485] [2023-11-23 21:16:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:09,553 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 21:16:09,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:09,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811738485] [2023-11-23 21:16:09,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811738485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:09,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:09,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:09,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502854153] [2023-11-23 21:16:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:09,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:09,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:09,567 INFO L87 Difference]: Start difference. First operand 186 states and 247 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:16:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:09,759 INFO L93 Difference]: Finished difference Result 291 states and 374 transitions. [2023-11-23 21:16:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:09,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2023-11-23 21:16:09,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:09,765 INFO L225 Difference]: With dead ends: 291 [2023-11-23 21:16:09,765 INFO L226 Difference]: Without dead ends: 188 [2023-11-23 21:16:09,767 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 21:16:09,769 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:09,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-23 21:16:09,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-23 21:16:09,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-23 21:16:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2023-11-23 21:16:09,798 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 65 [2023-11-23 21:16:09,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:09,799 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2023-11-23 21:16:09,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:16:09,799 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2023-11-23 21:16:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:16:09,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:09,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:09,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:09,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:09,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash -728245085, now seen corresponding path program 1 times [2023-11-23 21:16:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:09,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550519590] [2023-11-23 21:16:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:10,020 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 21:16:10,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:10,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550519590] [2023-11-23 21:16:10,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550519590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:10,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:10,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:10,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355538640] [2023-11-23 21:16:10,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:10,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:10,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:10,024 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:16:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:10,146 INFO L93 Difference]: Finished difference Result 406 states and 557 transitions. [2023-11-23 21:16:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2023-11-23 21:16:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:10,150 INFO L225 Difference]: With dead ends: 406 [2023-11-23 21:16:10,151 INFO L226 Difference]: Without dead ends: 236 [2023-11-23 21:16:10,152 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 21:16:10,154 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 57 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:10,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 434 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:10,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-23 21:16:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2023-11-23 21:16:10,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 143 states have (on average 1.3776223776223777) internal successors, (197), 146 states have internal predecessors, (197), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-23 21:16:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 324 transitions. [2023-11-23 21:16:10,210 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 324 transitions. Word has length 70 [2023-11-23 21:16:10,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:10,212 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 324 transitions. [2023-11-23 21:16:10,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 21:16:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 324 transitions. [2023-11-23 21:16:10,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:16:10,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:10,228 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] [2023-11-23 21:16:10,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:16:10,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:10,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2009341636, now seen corresponding path program 1 times [2023-11-23 21:16:10,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:10,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209821003] [2023-11-23 21:16:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:10,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:10,519 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 21:16:10,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:10,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209821003] [2023-11-23 21:16:10,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209821003] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:16:10,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288746839] [2023-11-23 21:16:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:10,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:10,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:10,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:10,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6844a44-1464-4e40-9a35-4c61d8a63e89/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:10,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:10,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:11,077 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 21:16:11,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:16:11,207 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 21:16:11,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288746839] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:16:11,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1835808974] [2023-11-23 21:16:11,241 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-11-23 21:16:11,241 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:16:11,250 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:16:11,258 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:16:11,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:16:59,442 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-11-23 21:16:59,738 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 230 for LOIs [2023-11-23 21:17:00,000 INFO L180 IcfgInterpreter]: Interpretation finished