./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje --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 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:16:53,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:16:54,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:16:54,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:16:54,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:16:54,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:16:54,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:16:54,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:16:54,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:16:54,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:16:54,156 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:16:54,156 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:16:54,157 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:16:54,157 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:16:54,157 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:16:54,160 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:16:54,160 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:16:54,161 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:16:54,161 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:16:54,161 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:16:54,162 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:16:54,165 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:16:54,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:16:54,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:16:54,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:16:54,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:16:54,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:16:54,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:16:54,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:16:54,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:16:54,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:16:54,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:16:54,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:16:54,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:16:54,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:16:54,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:16:54,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:16:54,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:16:54,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:16:54,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:16:54,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:16:54,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:16:54,172 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:16:54,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:16:54,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:16:54,173 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:16:54,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:16:54,174 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_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 [2024-11-09 07:16:54,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:16:54,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:16:54,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:16:54,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:16:54,452 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:16:54,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec6_product12.cil.c Unable to find full path for "g++" [2024-11-09 07:16:56,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:16:56,719 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:16:56,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2024-11-09 07:16:56,746 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/data/e4bf4ce67/55b08df1a04b40ea90da882b06e8ae69/FLAGa4cd68b0f [2024-11-09 07:16:57,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/data/e4bf4ce67/55b08df1a04b40ea90da882b06e8ae69 [2024-11-09 07:16:57,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:16:57,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:16:57,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:16:57,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:16:57,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:16:57,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:57,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3252a13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57, skipping insertion in model container [2024-11-09 07:16:57,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:57,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:16:57,755 WARN L250 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_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c[52000,52013] [2024-11-09 07:16:57,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:16:57,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:16:57,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-09 07:16:57,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [97] [2024-11-09 07:16:57,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [210] [2024-11-09 07:16:57,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [576] [2024-11-09 07:16:57,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [864] [2024-11-09 07:16:57,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1937] [2024-11-09 07:16:57,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2342] [2024-11-09 07:16:57,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2351] [2024-11-09 07:16:57,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2583] [2024-11-09 07:16:57,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2629] [2024-11-09 07:16:57,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2646] [2024-11-09 07:16:57,925 WARN L250 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_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c[52000,52013] [2024-11-09 07:16:57,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:16:57,984 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:16:57,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57 WrapperNode [2024-11-09 07:16:57,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:16:57,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:16:57,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:16:57,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:16:57,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,103 INFO L138 Inliner]: procedures = 123, calls = 179, calls flagged for inlining = 49, calls inlined = 39, statements flattened = 810 [2024-11-09 07:16:58,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:16:58,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:16:58,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:16:58,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:16:58,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:16:58,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:16:58,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:16:58,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:16:58,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (1/1) ... [2024-11-09 07:16:58,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:16:58,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:58,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:16:58,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:16:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 07:16:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 07:16:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 07:16:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 07:16:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 07:16:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 07:16:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 07:16:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 07:16:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 07:16:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 07:16:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 07:16:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 07:16:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 07:16:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 07:16:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 07:16:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 07:16:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 07:16:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 07:16:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:16:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 07:16:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 07:16:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 07:16:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 07:16:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 07:16:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 07:16:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 07:16:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 07:16:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 07:16:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 07:16:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 07:16:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 07:16:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 07:16:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 07:16:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:16:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 07:16:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 07:16:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:16:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:16:58,524 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:16:58,527 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:16:59,466 INFO L? ?]: Removed 334 outVars from TransFormulas that were not future-live. [2024-11-09 07:16:59,466 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:17:00,031 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:17:00,032 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:17:00,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:17:00 BoogieIcfgContainer [2024-11-09 07:17:00,033 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:17:00,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:17:00,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:17:00,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:17:00,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:16:57" (1/3) ... [2024-11-09 07:17:00,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12562812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:17:00, skipping insertion in model container [2024-11-09 07:17:00,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:57" (2/3) ... [2024-11-09 07:17:00,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12562812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:17:00, skipping insertion in model container [2024-11-09 07:17:00,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:17:00" (3/3) ... [2024-11-09 07:17:00,046 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2024-11-09 07:17:00,064 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:17:00,065 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:17:00,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:17:00,145 INFO L333 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, 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;@2626009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:17:00,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:17:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 94 states have internal predecessors, (123), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-09 07:17:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 07:17:00,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:00,164 INFO L215 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] [2024-11-09 07:17:00,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:00,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:00,170 INFO L85 PathProgramCache]: Analyzing trace with hash 150851840, now seen corresponding path program 1 times [2024-11-09 07:17:00,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:00,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611393167] [2024-11-09 07:17:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:00,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:17:00,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:00,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611393167] [2024-11-09 07:17:00,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611393167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:00,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:00,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:17:00,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479933080] [2024-11-09 07:17:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:00,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:17:00,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:17:00,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:17:00,717 INFO L87 Difference]: Start difference. First operand has 152 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 94 states have internal predecessors, (123), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-09 07:17:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:00,852 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2024-11-09 07:17:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:17:00,856 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 69 [2024-11-09 07:17:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:00,870 INFO L225 Difference]: With dead ends: 221 [2024-11-09 07:17:00,870 INFO L226 Difference]: Without dead ends: 149 [2024-11-09 07:17:00,875 INFO L431 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 [2024-11-09 07:17:00,880 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:00,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:00,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-09 07:17:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-09 07:17:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 91 states have internal predecessors, (117), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 07:17:00,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2024-11-09 07:17:00,936 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 69 [2024-11-09 07:17:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:00,937 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2024-11-09 07:17:00,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-09 07:17:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2024-11-09 07:17:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 07:17:00,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:00,943 INFO L215 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] [2024-11-09 07:17:00,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:17:00,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:00,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:00,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2095686005, now seen corresponding path program 1 times [2024-11-09 07:17:00,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:00,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272903631] [2024-11-09 07:17:00,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:00,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:17:01,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:01,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272903631] [2024-11-09 07:17:01,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272903631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:01,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:01,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:17:01,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757457996] [2024-11-09 07:17:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:01,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:01,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:01,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:01,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:17:01,191 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-09 07:17:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:01,288 INFO L93 Difference]: Finished difference Result 217 states and 284 transitions. [2024-11-09 07:17:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:01,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 70 [2024-11-09 07:17:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:01,291 INFO L225 Difference]: With dead ends: 217 [2024-11-09 07:17:01,291 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 07:17:01,292 INFO L431 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 [2024-11-09 07:17:01,293 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:01,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 07:17:01,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-09 07:17:01,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 93 states have internal predecessors, (119), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 07:17:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 204 transitions. [2024-11-09 07:17:01,314 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 204 transitions. Word has length 70 [2024-11-09 07:17:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:01,317 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 204 transitions. [2024-11-09 07:17:01,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-09 07:17:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 204 transitions. [2024-11-09 07:17:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:17:01,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:01,320 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:01,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:17:01,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:01,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:01,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1567752604, now seen corresponding path program 1 times [2024-11-09 07:17:01,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:01,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402785744] [2024-11-09 07:17:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:17:01,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:01,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402785744] [2024-11-09 07:17:01,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402785744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:01,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:01,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:17:01,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908249506] [2024-11-09 07:17:01,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:01,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:17:01,509 INFO L87 Difference]: Start difference. First operand 151 states and 204 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (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) [2024-11-09 07:17:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:01,641 INFO L93 Difference]: Finished difference Result 332 states and 467 transitions. [2024-11-09 07:17:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:01,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (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 75 [2024-11-09 07:17:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:01,645 INFO L225 Difference]: With dead ends: 332 [2024-11-09 07:17:01,649 INFO L226 Difference]: Without dead ends: 199 [2024-11-09 07:17:01,650 INFO L431 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 [2024-11-09 07:17:01,651 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 57 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:01,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 363 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-09 07:17:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 194. [2024-11-09 07:17:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 122 states have (on average 1.4098360655737705) internal successors, (172), 125 states have internal predecessors, (172), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 07:17:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 279 transitions. [2024-11-09 07:17:01,702 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 279 transitions. Word has length 75 [2024-11-09 07:17:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:01,704 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 279 transitions. [2024-11-09 07:17:01,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (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) [2024-11-09 07:17:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 279 transitions. [2024-11-09 07:17:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 07:17:01,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:01,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:01,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:17:01,712 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:01,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:01,715 INFO L85 PathProgramCache]: Analyzing trace with hash 778168812, now seen corresponding path program 1 times [2024-11-09 07:17:01,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:01,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791979927] [2024-11-09 07:17:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:17:02,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:02,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791979927] [2024-11-09 07:17:02,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791979927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:02,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537601440] [2024-11-09 07:17:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:02,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:02,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:02,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:02,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:17:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:02,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:02,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:17:02,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:17:02,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537601440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:02,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [877159553] [2024-11-09 07:17:02,670 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-09 07:17:02,670 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:02,674 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:02,680 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:02,680 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:36,691 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 07:17:36,922 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2024-11-09 07:17:37,073 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:18:39,425 WARN L286 SmtUtils]: Spent 10.77s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:51,173 WARN L286 SmtUtils]: Spent 10.66s on a formula simplification. DAG size of input: 454 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:19:00,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [877159553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:19:00,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:19:00,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 07:19:00,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316629020] [2024-11-09 07:19:00,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:19:00,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 07:19:00,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:00,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 07:19:00,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 07:19:00,079 INFO L87 Difference]: Start difference. First operand 194 states and 279 transitions. Second operand has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 07:19:07,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:07,900 INFO L93 Difference]: Finished difference Result 402 states and 594 transitions. [2024-11-09 07:19:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:19:07,901 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 76 [2024-11-09 07:19:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:07,904 INFO L225 Difference]: With dead ends: 402 [2024-11-09 07:19:07,904 INFO L226 Difference]: Without dead ends: 226 [2024-11-09 07:19:07,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 83.0s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 07:19:07,910 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 25 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:07,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2342 Invalid, 1583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-09 07:19:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-09 07:19:07,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 217. [2024-11-09 07:19:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 144 states have (on average 1.4236111111111112) internal successors, (205), 147 states have internal predecessors, (205), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-09 07:19:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 312 transitions. [2024-11-09 07:19:08,001 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 312 transitions. Word has length 76 [2024-11-09 07:19:08,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:08,001 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 312 transitions. [2024-11-09 07:19:08,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 07:19:08,002 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 312 transitions. [2024-11-09 07:19:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 07:19:08,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:08,005 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:19:08,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:19:08,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 07:19:08,209 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:08,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:08,210 INFO L85 PathProgramCache]: Analyzing trace with hash -823504582, now seen corresponding path program 1 times [2024-11-09 07:19:08,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:08,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050377223] [2024-11-09 07:19:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:19:08,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:08,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050377223] [2024-11-09 07:19:08,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050377223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:19:08,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:19:08,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:19:08,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456642205] [2024-11-09 07:19:08,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:19:08,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:19:08,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:08,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:19:08,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:19:08,313 INFO L87 Difference]: Start difference. First operand 217 states and 312 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 07:19:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:08,481 INFO L93 Difference]: Finished difference Result 527 states and 788 transitions. [2024-11-09 07:19:08,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:19:08,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2024-11-09 07:19:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:08,485 INFO L225 Difference]: With dead ends: 527 [2024-11-09 07:19:08,485 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 07:19:08,486 INFO L431 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 [2024-11-09 07:19:08,487 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 55 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:08,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 362 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:19:08,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 07:19:08,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 329. [2024-11-09 07:19:08,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 231 states have (on average 1.4761904761904763) internal successors, (341), 234 states have internal predecessors, (341), 79 states have call successors, (79), 18 states have call predecessors, (79), 18 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 07:19:08,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 498 transitions. [2024-11-09 07:19:08,610 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 498 transitions. Word has length 81 [2024-11-09 07:19:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:08,611 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 498 transitions. [2024-11-09 07:19:08,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 07:19:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 498 transitions. [2024-11-09 07:19:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 07:19:08,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:08,614 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:19:08,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:19:08,615 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:08,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash -75896315, now seen corresponding path program 1 times [2024-11-09 07:19:08,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:08,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329199549] [2024-11-09 07:19:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:08,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:19:08,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:08,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329199549] [2024-11-09 07:19:08,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329199549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:19:08,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581889492] [2024-11-09 07:19:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:08,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:08,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:08,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:08,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:19:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:09,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:19:09,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:19:09,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:19:09,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581889492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:19:09,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [273738897] [2024-11-09 07:19:09,289 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-09 07:19:09,290 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:19:09,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:19:09,290 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:19:09,291 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:19:49,153 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 07:19:49,280 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 438 for LOIs [2024-11-09 07:19:50,526 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:20:14,907 WARN L286 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 438 DAG size of output: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:20:26,418 WARN L286 SmtUtils]: Spent 11.00s on a formula simplification. DAG size of input: 462 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:21:08,380 WARN L286 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 455 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:21:19,633 WARN L286 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 456 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:21:41,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [273738897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:41,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:21:41,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 07:21:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640465231] [2024-11-09 07:21:41,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:41,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 07:21:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 07:21:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:21:41,772 INFO L87 Difference]: Start difference. First operand 329 states and 498 transitions. Second operand has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 07:21:50,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:50,926 INFO L93 Difference]: Finished difference Result 666 states and 1035 transitions. [2024-11-09 07:21:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 07:21:50,928 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 82 [2024-11-09 07:21:50,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:50,931 INFO L225 Difference]: With dead ends: 666 [2024-11-09 07:21:50,931 INFO L226 Difference]: Without dead ends: 400 [2024-11-09 07:21:50,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 217 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 111.2s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:21:50,933 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 61 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:50,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2067 Invalid, 1717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-09 07:21:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-09 07:21:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 343. [2024-11-09 07:21:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 243 states have (on average 1.4732510288065843) internal successors, (358), 246 states have internal predecessors, (358), 80 states have call successors, (80), 19 states have call predecessors, (80), 19 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-09 07:21:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 517 transitions. [2024-11-09 07:21:51,079 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 517 transitions. Word has length 82 [2024-11-09 07:21:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:51,080 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 517 transitions. [2024-11-09 07:21:51,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 07:21:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 517 transitions. [2024-11-09 07:21:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 07:21:51,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:51,085 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:51,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:21:51,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 07:21:51,286 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:21:51,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:51,286 INFO L85 PathProgramCache]: Analyzing trace with hash -21342930, now seen corresponding path program 1 times [2024-11-09 07:21:51,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:51,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283628464] [2024-11-09 07:21:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:21:51,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283628464] [2024-11-09 07:21:51,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283628464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:21:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474048695] [2024-11-09 07:21:51,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:51,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:51,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:51,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:21:51,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:21:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:51,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:21:51,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:21:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:21:51,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:21:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:21:51,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474048695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:21:51,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [604104077] [2024-11-09 07:21:51,932 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-09 07:21:51,932 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:21:51,933 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:21:51,933 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:21:51,933 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:58,550 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 07:22:58,682 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 484 for LOIs [2024-11-09 07:22:59,738 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 493 for LOIs [2024-11-09 07:23:01,012 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 429 for LOIs [2024-11-09 07:23:01,463 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2024-11-09 07:23:01,608 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:24:08,697 WARN L286 SmtUtils]: Spent 13.69s on a formula simplification. DAG size of input: 513 DAG size of output: 508 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:22,354 WARN L286 SmtUtils]: Spent 12.84s on a formula simplification. DAG size of input: 514 DAG size of output: 508 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:42,661 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 494 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:48,384 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 499 DAG size of output: 495 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:53,855 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 493 DAG size of output: 489 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:59,311 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 493 DAG size of output: 489 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:25:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [604104077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:20,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:25:20,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 07:25:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420739713] [2024-11-09 07:25:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:20,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 07:25:20,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:20,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 07:25:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 07:25:20,821 INFO L87 Difference]: Start difference. First operand 343 states and 517 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-09 07:25:34,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:34,958 INFO L93 Difference]: Finished difference Result 691 states and 1070 transitions. [2024-11-09 07:25:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 07:25:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 85 [2024-11-09 07:25:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:34,962 INFO L225 Difference]: With dead ends: 691 [2024-11-09 07:25:34,962 INFO L226 Difference]: Without dead ends: 425 [2024-11-09 07:25:34,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 139.2s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 07:25:34,964 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 100 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:34,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2849 Invalid, 2729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-09 07:25:34,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-09 07:25:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 379. [2024-11-09 07:25:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 273 states have (on average 1.465201465201465) internal successors, (400), 276 states have internal predecessors, (400), 83 states have call successors, (83), 22 states have call predecessors, (83), 22 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-09 07:25:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 565 transitions. [2024-11-09 07:25:35,113 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 565 transitions. Word has length 85 [2024-11-09 07:25:35,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:35,113 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 565 transitions. [2024-11-09 07:25:35,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-09 07:25:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 565 transitions. [2024-11-09 07:25:35,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:25:35,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:35,116 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:35,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:25:35,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:25:35,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:35,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:35,318 INFO L85 PathProgramCache]: Analyzing trace with hash -392424017, now seen corresponding path program 1 times [2024-11-09 07:25:35,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:35,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377400850] [2024-11-09 07:25:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:35,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:35,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:35,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377400850] [2024-11-09 07:25:35,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377400850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:35,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359500124] [2024-11-09 07:25:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:35,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:35,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:35,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:35,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:25:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:35,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:25:35,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:35,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:35,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359500124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:35,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [738372574] [2024-11-09 07:25:35,946 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 07:25:35,946 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:35,947 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:35,947 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:35,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:15,365 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 07:26:15,488 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2024-11-09 07:26:15,611 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:14,076 WARN L286 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:27:25,281 WARN L286 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 454 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:27:52,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [738372574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:52,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:27:52,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 07:27:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814941443] [2024-11-09 07:27:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:52,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 07:27:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 07:27:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:27:52,421 INFO L87 Difference]: Start difference. First operand 379 states and 565 transitions. Second operand has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 07:28:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:02,604 INFO L93 Difference]: Finished difference Result 693 states and 1061 transitions. [2024-11-09 07:28:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 07:28:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 84 [2024-11-09 07:28:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:02,608 INFO L225 Difference]: With dead ends: 693 [2024-11-09 07:28:02,609 INFO L226 Difference]: Without dead ends: 427 [2024-11-09 07:28:02,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 219 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 96.8s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:28:02,611 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 17 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:02,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2683 Invalid, 2247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-09 07:28:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-09 07:28:02,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 399. [2024-11-09 07:28:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 293 states have (on average 1.4675767918088738) internal successors, (430), 296 states have internal predecessors, (430), 83 states have call successors, (83), 22 states have call predecessors, (83), 22 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-09 07:28:02,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 595 transitions. [2024-11-09 07:28:02,797 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 595 transitions. Word has length 84 [2024-11-09 07:28:02,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:02,798 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 595 transitions. [2024-11-09 07:28:02,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 07:28:02,798 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 595 transitions. [2024-11-09 07:28:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 07:28:02,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:02,801 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 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, 1, 1] [2024-11-09 07:28:02,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:28:03,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 07:28:03,002 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:28:03,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1937184669, now seen corresponding path program 1 times [2024-11-09 07:28:03,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:03,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114267659] [2024-11-09 07:28:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:03,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:28:03,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:03,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114267659] [2024-11-09 07:28:03,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114267659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:03,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279978047] [2024-11-09 07:28:03,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:03,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:03,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:03,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:03,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_571ef2dd-1dc4-4b76-bae5-8062c6ecfe22/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:28:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:03,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:28:03,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:28:04,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:28:04,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279978047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:28:04,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [741583675] [2024-11-09 07:28:04,161 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-09 07:28:04,162 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:04,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:04,162 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:04,162 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:45,647 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-09 07:28:45,783 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 438 for LOIs [2024-11-09 07:28:47,431 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 243 for LOIs [2024-11-09 07:28:48,820 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 238 for LOIs [2024-11-09 07:28:53,910 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 236 for LOIs [2024-11-09 07:28:54,698 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 245 for LOIs [2024-11-09 07:28:55,525 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 229 for LOIs [2024-11-09 07:28:55,609 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:29:19,357 WARN L286 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 438 DAG size of output: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:29:30,442 WARN L286 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 462 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:30:30,002 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 261 DAG size of output: 245 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:30:47,719 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 249 DAG size of output: 234 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:31:06,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [741583675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:31:06,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:31:06,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [14, 5, 5] total 66 [2024-11-09 07:31:06,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889702030] [2024-11-09 07:31:06,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:31:06,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-09 07:31:06,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:31:06,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-09 07:31:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=3931, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 07:31:06,267 INFO L87 Difference]: Start difference. First operand 399 states and 595 transitions. Second operand has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 30 states have internal predecessors, (43), 15 states have call successors, (17), 8 states have call predecessors, (17), 6 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15)