./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/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_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/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_0e4447c2-5104-433f-b1e8-10c116ced624/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 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:38:07,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:38:07,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:38:07,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:38:07,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:38:07,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:38:07,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:38:07,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:38:07,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:38:07,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:38:07,239 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:38:07,239 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:38:07,240 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:38:07,241 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:38:07,241 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:38:07,242 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:38:07,242 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:38:07,243 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:38:07,243 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:38:07,244 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:38:07,244 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:38:07,245 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:38:07,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:38:07,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:38:07,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:38:07,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:38:07,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:38:07,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:38:07,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:38:07,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:38:07,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:38:07,249 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:38:07,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:38:07,250 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:38:07,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:38:07,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:38:07,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:38:07,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:07,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:38:07,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:38:07,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:38:07,252 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:38:07,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:38:07,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:38:07,253 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:38:07,253 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:38:07,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:38:07,254 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_0e4447c2-5104-433f-b1e8-10c116ced624/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 [2023-11-23 20:38:07,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:38:07,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:38:07,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:38:07,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:38:07,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:38:07,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2023-11-23 20:38:10,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:38:11,243 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:38:11,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2023-11-23 20:38:11,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/data/66294f790/1b73b6ffb1f1459181d2fdd91e686c9f/FLAG177651479 [2023-11-23 20:38:11,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/data/66294f790/1b73b6ffb1f1459181d2fdd91e686c9f [2023-11-23 20:38:11,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:38:11,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:38:11,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:11,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:38:11,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:38:11,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bae36c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11, skipping insertion in model container [2023-11-23 20:38:11,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:38:11,642 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_0e4447c2-5104-433f-b1e8-10c116ced624/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2023-11-23 20:38:12,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:12,043 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:38:12,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-11-23 20:38:12,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [66] [2023-11-23 20:38:12,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [189] [2023-11-23 20:38:12,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [198] [2023-11-23 20:38:12,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [236] [2023-11-23 20:38:12,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [602] [2023-11-23 20:38:12,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1007] [2023-11-23 20:38:12,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1314] [2023-11-23 20:38:12,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1618] [2023-11-23 20:38:12,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1637] [2023-11-23 20:38:12,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2702] [2023-11-23 20:38:12,079 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_0e4447c2-5104-433f-b1e8-10c116ced624/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2023-11-23 20:38:12,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:12,203 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:12,211 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:38:12,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12 WrapperNode [2023-11-23 20:38:12,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:12,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:12,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:38:12,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:38:12,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,331 INFO L138 Inliner]: procedures = 128, calls = 205, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 1018 [2023-11-23 20:38:12,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:12,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:38:12,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:38:12,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:38:12,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:38:12,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:38:12,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:38:12,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:38:12,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (1/1) ... [2023-11-23 20:38:12,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:12,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:12,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:38:12,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:38:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 20:38:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 20:38:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 20:38:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 20:38:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 20:38:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 20:38:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 20:38:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 20:38:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 20:38:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 20:38:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 20:38:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 20:38:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 20:38:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 20:38:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 20:38:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 20:38:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 20:38:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 20:38:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 20:38:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-23 20:38:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-23 20:38:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 20:38:12,607 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 20:38:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:38:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 20:38:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 20:38:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 20:38:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 20:38:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 20:38:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 20:38:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 20:38:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 20:38:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 20:38:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 20:38:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 20:38:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 20:38:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 20:38:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 20:38:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:38:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 20:38:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 20:38:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:38:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:38:12,815 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:38:12,818 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:38:13,710 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:38:14,288 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:38:14,289 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:38:14,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:14 BoogieIcfgContainer [2023-11-23 20:38:14,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:38:14,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:38:14,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:38:14,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:38:14,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:38:11" (1/3) ... [2023-11-23 20:38:14,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c80115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:14, skipping insertion in model container [2023-11-23 20:38:14,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:12" (2/3) ... [2023-11-23 20:38:14,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c80115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:14, skipping insertion in model container [2023-11-23 20:38:14,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:14" (3/3) ... [2023-11-23 20:38:14,305 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2023-11-23 20:38:14,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:38:14,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:38:14,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:38:14,407 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;@8eea8fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:38:14,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:38:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 100 states have (on average 1.34) internal successors, (134), 104 states have internal predecessors, (134), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-23 20:38:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 20:38:14,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:14,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:14,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:14,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1840430806, now seen corresponding path program 1 times [2023-11-23 20:38:14,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:14,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337735671] [2023-11-23 20:38:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:14,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:14,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:38:14,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:14,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337735671] [2023-11-23 20:38:14,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337735671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:14,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:14,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:38:14,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759576221] [2023-11-23 20:38:14,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:14,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:38:14,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:38:14,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:38:14,974 INFO L87 Difference]: Start difference. First operand has 171 states, 100 states have (on average 1.34) internal successors, (134), 104 states have internal predecessors, (134), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:38:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:15,111 INFO L93 Difference]: Finished difference Result 259 states and 346 transitions. [2023-11-23 20:38:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:38:15,114 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, (16), 2 states have call predecessors, (16), 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 20:38:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:15,130 INFO L225 Difference]: With dead ends: 259 [2023-11-23 20:38:15,131 INFO L226 Difference]: Without dead ends: 168 [2023-11-23 20:38:15,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:38:15,142 INFO L413 NwaCegarLoop]: 196 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, 196 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 20:38:15,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-23 20:38:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2023-11-23 20:38:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 101 states have internal predecessors, (128), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 20:38:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 227 transitions. [2023-11-23 20:38:15,214 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 227 transitions. Word has length 72 [2023-11-23 20:38:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:15,215 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 227 transitions. [2023-11-23 20:38:15,216 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:38:15,216 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 227 transitions. [2023-11-23 20:38:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:38:15,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:15,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:15,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:38:15,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:15,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:15,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1561075150, now seen corresponding path program 1 times [2023-11-23 20:38:15,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:15,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104376773] [2023-11-23 20:38:15,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:15,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:38:15,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:15,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104376773] [2023-11-23 20:38:15,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104376773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:15,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:15,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:15,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653106646] [2023-11-23 20:38:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:15,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:15,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:15,558 INFO L87 Difference]: Start difference. First operand 168 states and 227 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:38:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:15,709 INFO L93 Difference]: Finished difference Result 255 states and 334 transitions. [2023-11-23 20:38:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:15,709 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2023-11-23 20:38:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:15,712 INFO L225 Difference]: With dead ends: 255 [2023-11-23 20:38:15,712 INFO L226 Difference]: Without dead ends: 170 [2023-11-23 20:38:15,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:15,716 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 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 20:38:15,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-23 20:38:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2023-11-23 20:38:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 100 states have (on average 1.3) internal successors, (130), 103 states have internal predecessors, (130), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 20:38:15,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2023-11-23 20:38:15,741 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 73 [2023-11-23 20:38:15,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:15,741 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2023-11-23 20:38:15,742 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:38:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2023-11-23 20:38:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 20:38:15,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:15,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:15,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:38:15,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:15,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:15,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1421382581, now seen corresponding path program 1 times [2023-11-23 20:38:15,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:15,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352294843] [2023-11-23 20:38:15,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:15,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:38:15,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:15,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352294843] [2023-11-23 20:38:15,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352294843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:15,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:15,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:15,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56059649] [2023-11-23 20:38:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:15,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:15,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:15,891 INFO L87 Difference]: Start difference. First operand 170 states and 229 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:38:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:16,057 INFO L93 Difference]: Finished difference Result 370 states and 517 transitions. [2023-11-23 20:38:16,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:16,058 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 78 [2023-11-23 20:38:16,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:16,065 INFO L225 Difference]: With dead ends: 370 [2023-11-23 20:38:16,068 INFO L226 Difference]: Without dead ends: 218 [2023-11-23 20:38:16,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:16,075 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 57 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:16,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 395 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:38:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-23 20:38:16,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2023-11-23 20:38:16,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 135 states have internal predecessors, (183), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 20:38:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 304 transitions. [2023-11-23 20:38:16,130 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 304 transitions. Word has length 78 [2023-11-23 20:38:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:16,132 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 304 transitions. [2023-11-23 20:38:16,132 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:38:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 304 transitions. [2023-11-23 20:38:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 20:38:16,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:16,143 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:16,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:38:16,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:16,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:16,144 INFO L85 PathProgramCache]: Analyzing trace with hash -147420177, now seen corresponding path program 1 times [2023-11-23 20:38:16,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:16,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222575663] [2023-11-23 20:38:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:16,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:38:16,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:16,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222575663] [2023-11-23 20:38:16,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222575663] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:38:16,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972439340] [2023-11-23 20:38:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:16,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:38:16,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:16,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:38:16,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4447c2-5104-433f-b1e8-10c116ced624/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:38:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:16,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:38:16,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:38:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:38:16,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:38:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 20:38:17,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972439340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:38:17,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [858894600] [2023-11-23 20:38:17,059 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-11-23 20:38:17,060 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 20:38:17,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 20:38:17,074 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 20:38:17,075 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 20:39:04,025 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-11-23 20:39:04,294 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-11-23 20:39:04,503 INFO L180 IcfgInterpreter]: Interpretation finished