./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec7_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec7_product19.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a4e3d1ef75cde0243f57ce4bcedb5827704adb835017a69deaa6c50c3201720 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:56:04,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:56:04,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:56:04,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:56:04,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:56:04,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:56:04,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:56:04,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:56:04,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:56:04,578 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:56:04,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:56:04,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:56:04,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:56:04,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:56:04,580 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:56:04,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:56:04,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:56:04,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:56:04,581 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 7a4e3d1ef75cde0243f57ce4bcedb5827704adb835017a69deaa6c50c3201720 [2025-01-09 03:56:04,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:56:04,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:56:04,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:56:04,827 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:56:04,827 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:56:04,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product19.cil.c [2025-01-09 03:56:05,953 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346863d57/5348ee2bd40849158ced518a52fdf924/FLAG9a30bf83e [2025-01-09 03:56:06,355 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:56:06,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product19.cil.c [2025-01-09 03:56:06,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346863d57/5348ee2bd40849158ced518a52fdf924/FLAG9a30bf83e [2025-01-09 03:56:06,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346863d57/5348ee2bd40849158ced518a52fdf924 [2025-01-09 03:56:06,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:56:06,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:56:06,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:56:06,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:56:06,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:56:06,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:56:06" (1/1) ... [2025-01-09 03:56:06,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1581076a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:06, skipping insertion in model container [2025-01-09 03:56:06,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:56:06" (1/1) ... [2025-01-09 03:56:06,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:56:06,972 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product19.cil.c[37206,37219] [2025-01-09 03:56:07,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:56:07,042 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:56:07,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] [2025-01-09 03:56:07,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [79] [2025-01-09 03:56:07,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] [2025-01-09 03:56:07,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [509] [2025-01-09 03:56:07,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [547] [2025-01-09 03:56:07,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [913] [2025-01-09 03:56:07,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1138] [2025-01-09 03:56:07,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1236] [2025-01-09 03:56:07,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1533] [2025-01-09 03:56:07,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1815] [2025-01-09 03:56:07,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1824] [2025-01-09 03:56:07,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product19.cil.c[37206,37219] [2025-01-09 03:56:07,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:56:07,192 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:56:07,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07 WrapperNode [2025-01-09 03:56:07,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:56:07,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:56:07,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:56:07,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:56:07,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,270 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1000 [2025-01-09 03:56:07,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:56:07,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:56:07,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:56:07,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:56:07,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,326 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2025-01-09 03:56:07,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,355 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:56:07,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:56:07,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:56:07,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:56:07,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (1/1) ... [2025-01-09 03:56:07,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:56:07,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:56:07,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 03:56:07,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 03:56:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-01-09 03:56:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-01-09 03:56:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-01-09 03:56:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-01-09 03:56:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-01-09 03:56:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-01-09 03:56:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-01-09 03:56:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-01-09 03:56:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-01-09 03:56:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-01-09 03:56:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-01-09 03:56:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-01-09 03:56:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-01-09 03:56:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-01-09 03:56:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-01-09 03:56:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-01-09 03:56:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:56:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-01-09 03:56:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-01-09 03:56:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-01-09 03:56:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-01-09 03:56:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-01-09 03:56:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-01-09 03:56:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-01-09 03:56:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-01-09 03:56:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-01-09 03:56:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-01-09 03:56:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-01-09 03:56:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-01-09 03:56:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:56:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:56:07,652 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:56:07,653 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:56:08,293 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2025-01-09 03:56:08,293 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:56:08,308 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:56:08,311 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:56:08,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:56:08 BoogieIcfgContainer [2025-01-09 03:56:08,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:56:08,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:56:08,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:56:08,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:56:08,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:56:06" (1/3) ... [2025-01-09 03:56:08,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11687e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:56:08, skipping insertion in model container [2025-01-09 03:56:08,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:56:07" (2/3) ... [2025-01-09 03:56:08,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11687e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:56:08, skipping insertion in model container [2025-01-09 03:56:08,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:56:08" (3/3) ... [2025-01-09 03:56:08,318 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec7_product19.cil.c [2025-01-09 03:56:08,329 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:56:08,332 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec7_product19.cil.c that has 17 procedures, 300 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:56:08,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:56:08,400 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=PETRI_NET, 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;@66bb7371, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:56:08,400 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:56:08,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 300 states, 240 states have (on average 1.5333333333333334) internal successors, (368), 242 states have internal predecessors, (368), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-01-09 03:56:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-09 03:56:08,421 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:56:08,422 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:56:08,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:56:08,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:56:08,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1018099424, now seen corresponding path program 1 times [2025-01-09 03:56:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:56:08,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523676343] [2025-01-09 03:56:08,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:08,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:56:08,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 03:56:08,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 03:56:08,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:08,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:56:08,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:56:08,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523676343] [2025-01-09 03:56:08,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523676343] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:56:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341170190] [2025-01-09 03:56:08,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:08,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:08,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:56:08,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:56:08,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 03:56:09,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 03:56:09,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 03:56:09,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:09,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:09,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:56:09,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:56:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:56:09,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:56:09,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341170190] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:56:09,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:56:09,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:56:09,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704632498] [2025-01-09 03:56:09,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:56:09,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:56:09,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:56:09,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:56:09,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:56:09,247 INFO L87 Difference]: Start difference. First operand has 300 states, 240 states have (on average 1.5333333333333334) internal successors, (368), 242 states have internal predecessors, (368), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:56:09,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:56:09,300 INFO L93 Difference]: Finished difference Result 449 states and 664 transitions. [2025-01-09 03:56:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:56:09,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2025-01-09 03:56:09,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:56:09,312 INFO L225 Difference]: With dead ends: 449 [2025-01-09 03:56:09,312 INFO L226 Difference]: Without dead ends: 295 [2025-01-09 03:56:09,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:56:09,317 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 1 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:56:09,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 891 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:56:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2025-01-09 03:56:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 294. [2025-01-09 03:56:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 235 states have (on average 1.5276595744680852) internal successors, (359), 236 states have internal predecessors, (359), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-01-09 03:56:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 442 transitions. [2025-01-09 03:56:09,371 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 442 transitions. Word has length 86 [2025-01-09 03:56:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:56:09,372 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 442 transitions. [2025-01-09 03:56:09,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:56:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 442 transitions. [2025-01-09 03:56:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 03:56:09,375 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:56:09,375 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:56:09,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 03:56:09,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 03:56:09,577 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:56:09,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:56:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1238964368, now seen corresponding path program 1 times [2025-01-09 03:56:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:56:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889136607] [2025-01-09 03:56:09,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:09,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:56:09,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:56:09,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:56:09,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:09,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:56:09,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:56:09,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889136607] [2025-01-09 03:56:09,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889136607] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:56:09,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201631942] [2025-01-09 03:56:09,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:09,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:09,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:56:09,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:56:09,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 03:56:09,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:56:10,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:56:10,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:10,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:10,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:56:10,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:56:10,058 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:56:10,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:56:10,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201631942] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:56:10,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:56:10,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:56:10,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880882289] [2025-01-09 03:56:10,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:56:10,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:56:10,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:56:10,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:56:10,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:56:10,067 INFO L87 Difference]: Start difference. First operand 294 states and 442 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:56:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:56:10,104 INFO L93 Difference]: Finished difference Result 618 states and 943 transitions. [2025-01-09 03:56:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:56:10,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2025-01-09 03:56:10,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:56:10,108 INFO L225 Difference]: With dead ends: 618 [2025-01-09 03:56:10,111 INFO L226 Difference]: Without dead ends: 350 [2025-01-09 03:56:10,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:56:10,115 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 107 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:56:10,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 841 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:56:10,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2025-01-09 03:56:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 342. [2025-01-09 03:56:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 272 states have (on average 1.5441176470588236) internal successors, (420), 273 states have internal predecessors, (420), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-01-09 03:56:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 525 transitions. [2025-01-09 03:56:10,151 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 525 transitions. Word has length 91 [2025-01-09 03:56:10,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:56:10,152 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 525 transitions. [2025-01-09 03:56:10,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:56:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 525 transitions. [2025-01-09 03:56:10,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 03:56:10,157 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:56:10,157 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:56:10,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 03:56:10,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:10,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:56:10,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:56:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1485187983, now seen corresponding path program 1 times [2025-01-09 03:56:10,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:56:10,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065195619] [2025-01-09 03:56:10,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:10,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:56:10,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:56:10,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:56:10,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:10,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:56:10,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:56:10,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065195619] [2025-01-09 03:56:10,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065195619] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:56:10,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489135803] [2025-01-09 03:56:10,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:10,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:10,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:56:10,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:56:10,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 03:56:10,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:56:10,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:56:10,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:10,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:10,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:56:10,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:56:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:56:10,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:56:10,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489135803] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:56:10,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:56:10,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-01-09 03:56:10,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032352753] [2025-01-09 03:56:10,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:56:10,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:56:10,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:56:10,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:56:10,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:56:10,772 INFO L87 Difference]: Start difference. First operand 342 states and 525 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:56:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:56:10,813 INFO L93 Difference]: Finished difference Result 675 states and 1040 transitions. [2025-01-09 03:56:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:56:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2025-01-09 03:56:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:56:10,816 INFO L225 Difference]: With dead ends: 675 [2025-01-09 03:56:10,817 INFO L226 Difference]: Without dead ends: 344 [2025-01-09 03:56:10,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:56:10,818 INFO L435 NwaCegarLoop]: 433 mSDtfsCounter, 2 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:56:10,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1721 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:56:10,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-01-09 03:56:10,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2025-01-09 03:56:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 273 states have (on average 1.5421245421245422) internal successors, (421), 275 states have internal predecessors, (421), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2025-01-09 03:56:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 528 transitions. [2025-01-09 03:56:10,829 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 528 transitions. Word has length 92 [2025-01-09 03:56:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:56:10,829 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 528 transitions. [2025-01-09 03:56:10,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:56:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 528 transitions. [2025-01-09 03:56:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 03:56:10,831 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:56:10,831 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:56:10,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 03:56:11,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:11,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:56:11,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:56:11,032 INFO L85 PathProgramCache]: Analyzing trace with hash 502193536, now seen corresponding path program 1 times [2025-01-09 03:56:11,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:56:11,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240694297] [2025-01-09 03:56:11,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:11,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:56:11,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:56:11,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:56:11,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:11,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:56:11,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:56:11,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240694297] [2025-01-09 03:56:11,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240694297] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:56:11,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877360024] [2025-01-09 03:56:11,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:11,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:11,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:56:11,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:56:11,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 03:56:11,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:56:11,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:56:11,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:11,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:11,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:56:11,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:56:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:56:11,426 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:56:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877360024] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:56:11,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:56:11,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-01-09 03:56:11,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691909760] [2025-01-09 03:56:11,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:56:11,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:56:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:56:11,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:56:11,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:56:11,428 INFO L87 Difference]: Start difference. First operand 344 states and 528 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:56:11,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:56:11,478 INFO L93 Difference]: Finished difference Result 677 states and 1045 transitions. [2025-01-09 03:56:11,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:56:11,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2025-01-09 03:56:11,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:56:11,481 INFO L225 Difference]: With dead ends: 677 [2025-01-09 03:56:11,481 INFO L226 Difference]: Without dead ends: 346 [2025-01-09 03:56:11,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:56:11,482 INFO L435 NwaCegarLoop]: 431 mSDtfsCounter, 2 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:56:11,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1707 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:56:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-01-09 03:56:11,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2025-01-09 03:56:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 274 states have (on average 1.5401459854014599) internal successors, (422), 277 states have internal predecessors, (422), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2025-01-09 03:56:11,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 534 transitions. [2025-01-09 03:56:11,505 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 534 transitions. Word has length 93 [2025-01-09 03:56:11,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:56:11,506 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 534 transitions. [2025-01-09 03:56:11,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:56:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 534 transitions. [2025-01-09 03:56:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 03:56:11,509 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:56:11,509 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1] [2025-01-09 03:56:11,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 03:56:11,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:56:11,710 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:56:11,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:56:11,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1545311237, now seen corresponding path program 1 times [2025-01-09 03:56:11,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:56:11,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281872680] [2025-01-09 03:56:11,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:56:11,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:56:11,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 03:56:11,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 03:56:11,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:56:11,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:56:11,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:56:11,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281872680] [2025-01-09 03:56:11,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281872680] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:56:11,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:56:11,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:56:11,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113125416] [2025-01-09 03:56:11,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:56:11,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:56:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:56:11,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:56:11,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:56:11,873 INFO L87 Difference]: Start difference. First operand 346 states and 534 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:56:11,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:56:11,925 INFO L93 Difference]: Finished difference Result 669 states and 1036 transitions. [2025-01-09 03:56:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:56:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2025-01-09 03:56:11,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:56:11,929 INFO L225 Difference]: With dead ends: 669 [2025-01-09 03:56:11,929 INFO L226 Difference]: Without dead ends: 346 [2025-01-09 03:56:11,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:56:11,933 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 2 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:56:11,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1725 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:56:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-01-09 03:56:11,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2025-01-09 03:56:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 274 states have (on average 1.5401459854014599) internal successors, (422), 277 states have internal predecessors, (422), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2025-01-09 03:56:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 533 transitions. [2025-01-09 03:56:11,955 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 533 transitions. Word has length 94 [2025-01-09 03:56:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:56:11,955 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 533 transitions. [2025-01-09 03:56:11,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:56:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 533 transitions. [2025-01-09 03:56:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-09 03:56:11,956 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:56:11,956 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1] [2025-01-09 03:56:11,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:56:11,956 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:56:11,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:56:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1559393960, now seen corresponding path program 2 times [2025-01-09 03:56:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:56:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637668498] [2025-01-09 03:56:11,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:56:11,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:56:11,973 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-01-09 03:56:11,977 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 43 of 95 statements. [2025-01-09 03:56:11,977 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 03:56:11,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:56:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:56:12,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:56:12,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637668498] [2025-01-09 03:56:12,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637668498] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:56:12,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:56:12,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:56:12,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528410543] [2025-01-09 03:56:12,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:56:12,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:56:12,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:56:12,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:56:12,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:56:12,028 INFO L87 Difference]: Start difference. First operand 346 states and 533 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-09 03:56:12,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:56:12,049 INFO L93 Difference]: Finished difference Result 346 states and 533 transitions. [2025-01-09 03:56:12,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:56:12,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 95 [2025-01-09 03:56:12,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:56:12,050 INFO L225 Difference]: With dead ends: 346 [2025-01-09 03:56:12,050 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 03:56:12,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:56:12,051 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:56:12,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1741 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:56:12,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 03:56:12,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 03:56:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 03:56:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 03:56:12,052 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2025-01-09 03:56:12,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:56:12,053 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 03:56:12,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-09 03:56:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 03:56:12,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 03:56:12,055 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 03:56:12,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:56:12,057 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2025-01-09 03:56:12,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 03:56:12,122 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 03:56:12,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 03:56:12 BoogieIcfgContainer [2025-01-09 03:56:12,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 03:56:12,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 03:56:12,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 03:56:12,130 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 03:56:12,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:56:08" (3/4) ... [2025-01-09 03:56:12,132 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 03:56:12,136 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure getEmailSignKey [2025-01-09 03:56:12,136 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure outgoing [2025-01-09 03:56:12,136 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isSigned [2025-01-09 03:56:12,136 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientPrivateKey [2025-01-09 03:56:12,136 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure chuckKeyAdd [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure setEmailTo [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure getEmailTo [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure createClientKeyringEntry [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure generateKeyPair [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientKeyringUser [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure sendEmail [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure setEmailFrom [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure getEmailFrom [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isReadable [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientKeyringPublicKey [2025-01-09 03:56:12,137 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure setClientId [2025-01-09 03:56:12,148 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2025-01-09 03:56:12,149 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2025-01-09 03:56:12,150 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-01-09 03:56:12,151 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 03:56:12,152 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 03:56:12,153 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 03:56:12,256 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 03:56:12,256 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 03:56:12,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 03:56:12,257 INFO L158 Benchmark]: Toolchain (without parser) took 5672.26ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 127.7MB in the beginning and 204.9MB in the end (delta: -77.2MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. [2025-01-09 03:56:12,257 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 209.7MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:56:12,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.19ms. Allocated memory is still 167.8MB. Free memory was 127.7MB in the beginning and 89.7MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 03:56:12,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.76ms. Allocated memory is still 167.8MB. Free memory was 89.7MB in the beginning and 84.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 03:56:12,258 INFO L158 Benchmark]: Boogie Preprocessor took 129.92ms. Allocated memory is still 167.8MB. Free memory was 84.6MB in the beginning and 79.0MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:56:12,258 INFO L158 Benchmark]: RCFGBuilder took 909.90ms. Allocated memory is still 167.8MB. Free memory was 79.0MB in the beginning and 91.8MB in the end (delta: -12.8MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2025-01-09 03:56:12,258 INFO L158 Benchmark]: TraceAbstraction took 3816.02ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 91.8MB in the beginning and 223.1MB in the end (delta: -131.3MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2025-01-09 03:56:12,258 INFO L158 Benchmark]: Witness Printer took 126.38ms. Allocated memory is still 360.7MB. Free memory was 223.1MB in the beginning and 204.9MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 03:56:12,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 209.7MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.19ms. Allocated memory is still 167.8MB. Free memory was 127.7MB in the beginning and 89.7MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.76ms. Allocated memory is still 167.8MB. Free memory was 89.7MB in the beginning and 84.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.92ms. Allocated memory is still 167.8MB. Free memory was 84.6MB in the beginning and 79.0MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 909.90ms. Allocated memory is still 167.8MB. Free memory was 79.0MB in the beginning and 91.8MB in the end (delta: -12.8MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3816.02ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 91.8MB in the beginning and 223.1MB in the end (delta: -131.3MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Witness Printer took 126.38ms. Allocated memory is still 360.7MB. Free memory was 223.1MB in the beginning and 204.9MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] - GenericResultAtLocation [Line: 79]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [79] - GenericResultAtLocation [Line: 97]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] - GenericResultAtLocation [Line: 509]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [509] - GenericResultAtLocation [Line: 547]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [547] - GenericResultAtLocation [Line: 913]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [913] - GenericResultAtLocation [Line: 1138]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1138] - GenericResultAtLocation [Line: 1236]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1236] - GenericResultAtLocation [Line: 1533]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1533] - GenericResultAtLocation [Line: 1815]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1815] - GenericResultAtLocation [Line: 1824]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1824] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1820]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 300 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 8626 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5996 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2630 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 913 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 903 ConstructedInterpolants, 0 QuantifiedInterpolants, 996 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3768 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 274/289 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 03:56:12,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE