./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product32.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_spec3_product32.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 f844ee25e08c400ffe9294b51b3c9849047d932ed3d2e45badb4ba2d0884ce06 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:53:26,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:53:26,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:53:26,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:53:26,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:53:26,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:53:26,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:53:26,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:53:26,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:53:26,483 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:53:26,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:53:26,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:53:26,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:53:26,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:53:26,485 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:26,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:26,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:53:26,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:53:26,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:53:26,486 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 -> f844ee25e08c400ffe9294b51b3c9849047d932ed3d2e45badb4ba2d0884ce06 [2025-01-09 03:53:26,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:53:26,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:53:26,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:53:26,687 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:53:26,688 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:53:26,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product32.cil.c [2025-01-09 03:53:27,920 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec86a4139/bf5c3277c4e348e1aa64605e81058914/FLAG6a6440434 [2025-01-09 03:53:28,348 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:53:28,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c [2025-01-09 03:53:28,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec86a4139/bf5c3277c4e348e1aa64605e81058914/FLAG6a6440434 [2025-01-09 03:53:28,528 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec86a4139/bf5c3277c4e348e1aa64605e81058914 [2025-01-09 03:53:28,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:53:28,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:53:28,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:53:28,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:53:28,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:53:28,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:53:28" (1/1) ... [2025-01-09 03:53:28,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ade8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:28, skipping insertion in model container [2025-01-09 03:53:28,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:53:28" (1/1) ... [2025-01-09 03:53:28,591 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:53:28,719 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_spec3_product32.cil.c[1542,1555] [2025-01-09 03:53:28,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:53:29,015 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:53:29,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2025-01-09 03:53:29,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [57] [2025-01-09 03:53:29,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [106] [2025-01-09 03:53:29,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [541] [2025-01-09 03:53:29,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] [2025-01-09 03:53:29,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [787] [2025-01-09 03:53:29,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [845] [2025-01-09 03:53:29,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1917] [2025-01-09 03:53:29,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2205] [2025-01-09 03:53:29,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2025-01-09 03:53:29,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2025-01-09 03:53:29,028 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_spec3_product32.cil.c[1542,1555] [2025-01-09 03:53:29,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:53:29,136 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:53:29,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29 WrapperNode [2025-01-09 03:53:29,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:53:29,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:53:29,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:53:29,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:53:29,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,208 INFO L138 Inliner]: procedures = 135, calls = 226, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 1014 [2025-01-09 03:53:29,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:53:29,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:53:29,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:53:29,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:53:29,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,271 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 03:53:29,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,291 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:53:29,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:53:29,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:53:29,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:53:29,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (1/1) ... [2025-01-09 03:53:29,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:29,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:29,385 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 03:53:29,397 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 03:53:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2025-01-09 03:53:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2025-01-09 03:53:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2025-01-09 03:53:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2025-01-09 03:53:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2025-01-09 03:53:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2025-01-09 03:53:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2025-01-09 03:53:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2025-01-09 03:53:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2025-01-09 03:53:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2025-01-09 03:53:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-01-09 03:53:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-01-09 03:53:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2025-01-09 03:53:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2025-01-09 03:53:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-01-09 03:53:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-01-09 03:53:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-01-09 03:53:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-01-09 03:53:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-01-09 03:53:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2025-01-09 03:53:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-01-09 03:53:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-01-09 03:53:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-01-09 03:53:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-01-09 03:53:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:53:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-01-09 03:53:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2025-01-09 03:53:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:53:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:53:29,594 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:53:29,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:53:30,457 INFO L? ?]: Removed 543 outVars from TransFormulas that were not future-live. [2025-01-09 03:53:30,458 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:53:30,476 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:53:30,477 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:53:30,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:53:30 BoogieIcfgContainer [2025-01-09 03:53:30,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:53:30,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:53:30,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:53:30,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:53:30,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:53:28" (1/3) ... [2025-01-09 03:53:30,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327ab819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:53:30, skipping insertion in model container [2025-01-09 03:53:30,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:29" (2/3) ... [2025-01-09 03:53:30,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327ab819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:53:30, skipping insertion in model container [2025-01-09 03:53:30,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:53:30" (3/3) ... [2025-01-09 03:53:30,484 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec3_product32.cil.c [2025-01-09 03:53:30,493 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:53:30,496 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec3_product32.cil.c that has 30 procedures, 435 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:53:30,560 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:53:30,568 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;@5ff3b099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:53:30,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:53:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 435 states, 334 states have (on average 1.5449101796407185) internal successors, (516), 341 states have internal predecessors, (516), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2025-01-09 03:53:30,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-01-09 03:53:30,627 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:30,628 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:30,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:30,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2071515162, now seen corresponding path program 1 times [2025-01-09 03:53:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:30,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032290871] [2025-01-09 03:53:30,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:30,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:30,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:53:30,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:53:30,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:30,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 03:53:31,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:31,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032290871] [2025-01-09 03:53:31,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032290871] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:31,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475571743] [2025-01-09 03:53:31,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:31,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:31,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:31,336 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 03:53:31,337 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 03:53:31,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:53:31,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:53:31,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:31,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:31,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:53:31,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:31,759 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2025-01-09 03:53:31,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475571743] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:31,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:31,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:53:31,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158270305] [2025-01-09 03:53:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:31,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:31,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:31,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:31,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:31,786 INFO L87 Difference]: Start difference. First operand has 435 states, 334 states have (on average 1.5449101796407185) internal successors, (516), 341 states have internal predecessors, (516), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:31,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:31,856 INFO L93 Difference]: Finished difference Result 679 states and 1008 transitions. [2025-01-09 03:53:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:31,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2025-01-09 03:53:31,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:31,877 INFO L225 Difference]: With dead ends: 679 [2025-01-09 03:53:31,877 INFO L226 Difference]: Without dead ends: 429 [2025-01-09 03:53:31,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 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 03:53:31,884 INFO L435 NwaCegarLoop]: 649 mSDtfsCounter, 1 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1295 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 03:53:31,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1295 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2025-01-09 03:53:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 428. [2025-01-09 03:53:31,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 329 states have (on average 1.541033434650456) internal successors, (507), 334 states have internal predecessors, (507), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2025-01-09 03:53:31,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 644 transitions. [2025-01-09 03:53:31,938 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 644 transitions. Word has length 158 [2025-01-09 03:53:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:31,939 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 644 transitions. [2025-01-09 03:53:31,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 644 transitions. [2025-01-09 03:53:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 03:53:31,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:31,944 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:31,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 03:53:32,145 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 03:53:32,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:32,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:32,146 INFO L85 PathProgramCache]: Analyzing trace with hash 138435096, now seen corresponding path program 1 times [2025-01-09 03:53:32,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:32,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635340376] [2025-01-09 03:53:32,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:32,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:32,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:53:32,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:53:32,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:32,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-09 03:53:32,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:32,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635340376] [2025-01-09 03:53:32,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635340376] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:32,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021422894] [2025-01-09 03:53:32,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:32,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:32,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:32,590 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 03:53:32,592 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 03:53:32,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:53:32,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:53:32,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:32,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:32,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:53:32,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:53:33,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021422894] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:33,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:33,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:53:33,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721701125] [2025-01-09 03:53:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:33,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:33,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:33,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:33,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:33,013 INFO L87 Difference]: Start difference. First operand 428 states and 644 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:33,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:33,065 INFO L93 Difference]: Finished difference Result 904 states and 1380 transitions. [2025-01-09 03:53:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:33,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2025-01-09 03:53:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:33,069 INFO L225 Difference]: With dead ends: 904 [2025-01-09 03:53:33,072 INFO L226 Difference]: Without dead ends: 502 [2025-01-09 03:53:33,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 03:53:33,074 INFO L435 NwaCegarLoop]: 654 mSDtfsCounter, 134 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1250 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 03:53:33,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2025-01-09 03:53:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 494. [2025-01-09 03:53:33,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 381 states have (on average 1.5616797900262467) internal successors, (595), 386 states have internal predecessors, (595), 84 states have call successors, (84), 29 states have call predecessors, (84), 28 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2025-01-09 03:53:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 760 transitions. [2025-01-09 03:53:33,111 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 760 transitions. Word has length 147 [2025-01-09 03:53:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:33,111 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 760 transitions. [2025-01-09 03:53:33,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 760 transitions. [2025-01-09 03:53:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-01-09 03:53:33,115 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:33,115 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:33,123 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 03:53:33,315 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 03:53:33,316 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:33,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1045433177, now seen corresponding path program 1 times [2025-01-09 03:53:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:33,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441907893] [2025-01-09 03:53:33,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:33,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:33,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-01-09 03:53:33,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-01-09 03:53:33,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:33,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-09 03:53:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441907893] [2025-01-09 03:53:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441907893] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451786208] [2025-01-09 03:53:33,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:33,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:33,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:33,532 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 03:53:33,551 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 03:53:33,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-01-09 03:53:34,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-01-09 03:53:34,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:34,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:34,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 1350 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:53:34,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 03:53:34,080 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:34,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451786208] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:34,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:34,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-01-09 03:53:34,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199890467] [2025-01-09 03:53:34,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:34,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:34,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:34,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:34,085 INFO L87 Difference]: Start difference. First operand 494 states and 760 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:34,177 INFO L93 Difference]: Finished difference Result 979 states and 1510 transitions. [2025-01-09 03:53:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:34,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 167 [2025-01-09 03:53:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:34,188 INFO L225 Difference]: With dead ends: 979 [2025-01-09 03:53:34,188 INFO L226 Difference]: Without dead ends: 496 [2025-01-09 03:53:34,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 165 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 03:53:34,191 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 2 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2529 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 03:53:34,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2529 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2025-01-09 03:53:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2025-01-09 03:53:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 382 states have (on average 1.5602094240837696) internal successors, (596), 388 states have internal predecessors, (596), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (83), 80 states have call predecessors, (83), 81 states have call successors, (83) [2025-01-09 03:53:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 763 transitions. [2025-01-09 03:53:34,239 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 763 transitions. Word has length 167 [2025-01-09 03:53:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:34,239 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 763 transitions. [2025-01-09 03:53:34,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 763 transitions. [2025-01-09 03:53:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 03:53:34,243 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:34,243 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:34,251 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 03:53:34,447 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 03:53:34,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:34,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash 928702563, now seen corresponding path program 1 times [2025-01-09 03:53:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:34,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278193827] [2025-01-09 03:53:34,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:34,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:34,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:53:34,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:53:34,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:34,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:34,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:34,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278193827] [2025-01-09 03:53:34,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278193827] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:34,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978151916] [2025-01-09 03:53:34,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:34,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:34,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:34,645 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 03:53:34,647 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 03:53:34,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:53:34,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:53:34,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:34,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:34,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:53:34,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:53:34,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:34,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978151916] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:34,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:34,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-01-09 03:53:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168238435] [2025-01-09 03:53:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:34,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:34,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:34,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:34,968 INFO L87 Difference]: Start difference. First operand 496 states and 763 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:53:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:35,042 INFO L93 Difference]: Finished difference Result 981 states and 1515 transitions. [2025-01-09 03:53:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:35,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2025-01-09 03:53:35,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:35,047 INFO L225 Difference]: With dead ends: 981 [2025-01-09 03:53:35,047 INFO L226 Difference]: Without dead ends: 498 [2025-01-09 03:53:35,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:35,050 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 2 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2515 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 03:53:35,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2515 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2025-01-09 03:53:35,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2025-01-09 03:53:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 383 states have (on average 1.558746736292428) internal successors, (597), 390 states have internal predecessors, (597), 84 states have call successors, (84), 29 states have call predecessors, (84), 30 states have return successors, (88), 80 states have call predecessors, (88), 81 states have call successors, (88) [2025-01-09 03:53:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 769 transitions. [2025-01-09 03:53:35,071 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 769 transitions. Word has length 149 [2025-01-09 03:53:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:35,072 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 769 transitions. [2025-01-09 03:53:35,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:53:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 769 transitions. [2025-01-09 03:53:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-01-09 03:53:35,076 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:35,076 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:35,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:53:35,276 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 03:53:35,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:35,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1539119861, now seen corresponding path program 1 times [2025-01-09 03:53:35,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:35,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416291504] [2025-01-09 03:53:35,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:35,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:35,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 03:53:35,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 03:53:35,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:35,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-09 03:53:35,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:35,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416291504] [2025-01-09 03:53:35,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416291504] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:35,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:35,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:35,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550798] [2025-01-09 03:53:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:35,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:35,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:35,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:35,468 INFO L87 Difference]: Start difference. First operand 498 states and 769 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:35,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:35,504 INFO L93 Difference]: Finished difference Result 973 states and 1506 transitions. [2025-01-09 03:53:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:35,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 169 [2025-01-09 03:53:35,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:35,507 INFO L225 Difference]: With dead ends: 973 [2025-01-09 03:53:35,507 INFO L226 Difference]: Without dead ends: 498 [2025-01-09 03:53:35,509 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 03:53:35,509 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 2 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2533 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 03:53:35,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2533 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2025-01-09 03:53:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2025-01-09 03:53:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 383 states have (on average 1.558746736292428) internal successors, (597), 390 states have internal predecessors, (597), 84 states have call successors, (84), 29 states have call predecessors, (84), 30 states have return successors, (87), 80 states have call predecessors, (87), 81 states have call successors, (87) [2025-01-09 03:53:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 768 transitions. [2025-01-09 03:53:35,525 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 768 transitions. Word has length 169 [2025-01-09 03:53:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:35,526 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 768 transitions. [2025-01-09 03:53:35,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 768 transitions. [2025-01-09 03:53:35,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-01-09 03:53:35,528 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:35,528 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:35,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:53:35,529 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:35,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:35,529 INFO L85 PathProgramCache]: Analyzing trace with hash -227419640, now seen corresponding path program 2 times [2025-01-09 03:53:35,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:35,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274358397] [2025-01-09 03:53:35,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:53:35,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:35,551 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 170 statements into 2 equivalence classes. [2025-01-09 03:53:35,557 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 68 of 170 statements. [2025-01-09 03:53:35,557 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 03:53:35,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 03:53:35,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:35,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274358397] [2025-01-09 03:53:35,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274358397] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:35,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:35,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:35,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006124189] [2025-01-09 03:53:35,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:35,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:35,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:35,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:35,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:35,709 INFO L87 Difference]: Start difference. First operand 498 states and 768 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:36,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:36,190 INFO L93 Difference]: Finished difference Result 1334 states and 2035 transitions. [2025-01-09 03:53:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:53:36,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 170 [2025-01-09 03:53:36,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:36,203 INFO L225 Difference]: With dead ends: 1334 [2025-01-09 03:53:36,203 INFO L226 Difference]: Without dead ends: 1104 [2025-01-09 03:53:36,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:53:36,205 INFO L435 NwaCegarLoop]: 664 mSDtfsCounter, 741 mSDsluCounter, 3892 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:36,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 4556 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:53:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2025-01-09 03:53:36,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 989. [2025-01-09 03:53:36,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 764 states have (on average 1.5628272251308901) internal successors, (1194), 774 states have internal predecessors, (1194), 164 states have call successors, (164), 58 states have call predecessors, (164), 60 states have return successors, (176), 160 states have call predecessors, (176), 160 states have call successors, (176) [2025-01-09 03:53:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1534 transitions. [2025-01-09 03:53:36,269 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1534 transitions. Word has length 170 [2025-01-09 03:53:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:36,270 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1534 transitions. [2025-01-09 03:53:36,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1534 transitions. [2025-01-09 03:53:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-01-09 03:53:36,273 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:36,273 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:36,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:53:36,273 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:36,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:36,274 INFO L85 PathProgramCache]: Analyzing trace with hash 596628238, now seen corresponding path program 1 times [2025-01-09 03:53:36,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:36,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499267739] [2025-01-09 03:53:36,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:36,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:36,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-01-09 03:53:36,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-01-09 03:53:36,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:36,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-09 03:53:36,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499267739] [2025-01-09 03:53:36,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499267739] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:36,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:36,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:36,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704359579] [2025-01-09 03:53:36,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:36,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:36,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:36,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:36,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:36,433 INFO L87 Difference]: Start difference. First operand 989 states and 1534 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:53:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:36,499 INFO L93 Difference]: Finished difference Result 1947 states and 3028 transitions. [2025-01-09 03:53:36,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:36,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2025-01-09 03:53:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:36,508 INFO L225 Difference]: With dead ends: 1947 [2025-01-09 03:53:36,508 INFO L226 Difference]: Without dead ends: 993 [2025-01-09 03:53:36,511 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 03:53:36,511 INFO L435 NwaCegarLoop]: 637 mSDtfsCounter, 1 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2536 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 03:53:36,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2536 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2025-01-09 03:53:36,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2025-01-09 03:53:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 766 states have (on average 1.5613577023498695) internal successors, (1196), 778 states have internal predecessors, (1196), 164 states have call successors, (164), 58 states have call predecessors, (164), 62 states have return successors, (179), 160 states have call predecessors, (179), 160 states have call successors, (179) [2025-01-09 03:53:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1539 transitions. [2025-01-09 03:53:36,552 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1539 transitions. Word has length 152 [2025-01-09 03:53:36,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:36,552 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1539 transitions. [2025-01-09 03:53:36,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:53:36,552 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1539 transitions. [2025-01-09 03:53:36,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 03:53:36,556 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:36,556 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:36,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:53:36,557 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:36,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:36,557 INFO L85 PathProgramCache]: Analyzing trace with hash 477949728, now seen corresponding path program 1 times [2025-01-09 03:53:36,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:36,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552674241] [2025-01-09 03:53:36,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:36,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 03:53:36,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 03:53:36,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:36,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:36,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:36,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552674241] [2025-01-09 03:53:36,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552674241] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:36,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:36,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901742275] [2025-01-09 03:53:36,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:36,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:36,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:36,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:36,707 INFO L87 Difference]: Start difference. First operand 993 states and 1539 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:53:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:36,843 INFO L93 Difference]: Finished difference Result 1946 states and 3021 transitions. [2025-01-09 03:53:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:53:36,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 153 [2025-01-09 03:53:36,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:36,849 INFO L225 Difference]: With dead ends: 1946 [2025-01-09 03:53:36,849 INFO L226 Difference]: Without dead ends: 997 [2025-01-09 03:53:36,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:53:36,875 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 7 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:36,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4360 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:36,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2025-01-09 03:53:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 995. [2025-01-09 03:53:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 768 states have (on average 1.5598958333333333) internal successors, (1198), 779 states have internal predecessors, (1198), 164 states have call successors, (164), 59 states have call predecessors, (164), 62 states have return successors, (177), 160 states have call predecessors, (177), 160 states have call successors, (177) [2025-01-09 03:53:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1539 transitions. [2025-01-09 03:53:36,915 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1539 transitions. Word has length 153 [2025-01-09 03:53:36,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:36,916 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1539 transitions. [2025-01-09 03:53:36,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:53:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1539 transitions. [2025-01-09 03:53:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-01-09 03:53:36,920 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:36,920 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:36,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:53:36,921 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1970698369, now seen corresponding path program 2 times [2025-01-09 03:53:36,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:36,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728498859] [2025-01-09 03:53:36,921 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:53:36,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:36,943 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 154 statements into 2 equivalence classes. [2025-01-09 03:53:36,948 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 71 of 154 statements. [2025-01-09 03:53:36,948 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 03:53:36,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-01-09 03:53:37,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:37,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728498859] [2025-01-09 03:53:37,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728498859] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:37,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:37,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:37,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839047120] [2025-01-09 03:53:37,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:37,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:37,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:37,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:37,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:37,070 INFO L87 Difference]: Start difference. First operand 995 states and 1539 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:37,198 INFO L93 Difference]: Finished difference Result 1507 states and 2283 transitions. [2025-01-09 03:53:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:53:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2025-01-09 03:53:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:37,207 INFO L225 Difference]: With dead ends: 1507 [2025-01-09 03:53:37,207 INFO L226 Difference]: Without dead ends: 1051 [2025-01-09 03:53:37,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:53:37,210 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 26 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:37,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 4628 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:37,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2025-01-09 03:53:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1033. [2025-01-09 03:53:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 789 states have (on average 1.5538656527249683) internal successors, (1226), 806 states have internal predecessors, (1226), 178 states have call successors, (178), 59 states have call predecessors, (178), 65 states have return successors, (199), 173 states have call predecessors, (199), 174 states have call successors, (199) [2025-01-09 03:53:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1603 transitions. [2025-01-09 03:53:37,270 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1603 transitions. Word has length 154 [2025-01-09 03:53:37,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:37,271 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1603 transitions. [2025-01-09 03:53:37,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:37,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1603 transitions. [2025-01-09 03:53:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-01-09 03:53:37,277 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:37,277 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:37,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 03:53:37,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:37,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:37,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1213798980, now seen corresponding path program 1 times [2025-01-09 03:53:37,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:37,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918823398] [2025-01-09 03:53:37,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:37,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:37,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-01-09 03:53:37,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-01-09 03:53:37,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:37,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:37,474 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-01-09 03:53:37,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:37,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918823398] [2025-01-09 03:53:37,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918823398] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:37,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393119945] [2025-01-09 03:53:37,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:37,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:37,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:37,478 INFO L229 MonitoredProcess]: Starting monitored process 6 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 03:53:37,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 03:53:37,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-01-09 03:53:37,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-01-09 03:53:37,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:37,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:37,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:53:37,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:53:37,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:37,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393119945] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:37,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:37,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-01-09 03:53:37,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806315389] [2025-01-09 03:53:37,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:37,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:37,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:37,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:37,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:37,845 INFO L87 Difference]: Start difference. First operand 1033 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:37,911 INFO L93 Difference]: Finished difference Result 1559 states and 2418 transitions. [2025-01-09 03:53:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:37,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 173 [2025-01-09 03:53:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:37,917 INFO L225 Difference]: With dead ends: 1559 [2025-01-09 03:53:37,918 INFO L226 Difference]: Without dead ends: 1039 [2025-01-09 03:53:37,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 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 03:53:37,920 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 1 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:37,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2526 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:37,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2025-01-09 03:53:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1035. [2025-01-09 03:53:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 790 states have (on average 1.5531645569620254) internal successors, (1227), 808 states have internal predecessors, (1227), 178 states have call successors, (178), 59 states have call predecessors, (178), 66 states have return successors, (202), 173 states have call predecessors, (202), 174 states have call successors, (202) [2025-01-09 03:53:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1607 transitions. [2025-01-09 03:53:37,961 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1607 transitions. Word has length 173 [2025-01-09 03:53:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:37,962 INFO L471 AbstractCegarLoop]: Abstraction has 1035 states and 1607 transitions. [2025-01-09 03:53:37,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1607 transitions. [2025-01-09 03:53:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 03:53:37,966 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:37,966 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:37,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 03:53:38,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-09 03:53:38,167 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:38,167 INFO L85 PathProgramCache]: Analyzing trace with hash -861092130, now seen corresponding path program 1 times [2025-01-09 03:53:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:38,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909813157] [2025-01-09 03:53:38,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:38,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:38,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 03:53:38,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 03:53:38,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:38,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:53:38,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:38,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909813157] [2025-01-09 03:53:38,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909813157] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:38,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:38,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:38,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095440160] [2025-01-09 03:53:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:38,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:38,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:38,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:38,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:38,360 INFO L87 Difference]: Start difference. First operand 1035 states and 1607 transitions. Second operand has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2025-01-09 03:53:38,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:38,494 INFO L93 Difference]: Finished difference Result 2039 states and 3173 transitions. [2025-01-09 03:53:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:53:38,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 174 [2025-01-09 03:53:38,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:38,501 INFO L225 Difference]: With dead ends: 2039 [2025-01-09 03:53:38,501 INFO L226 Difference]: Without dead ends: 1045 [2025-01-09 03:53:38,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:53:38,504 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 5 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:38,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4374 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2025-01-09 03:53:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1043. [2025-01-09 03:53:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 796 states have (on average 1.5489949748743719) internal successors, (1233), 815 states have internal predecessors, (1233), 178 states have call successors, (178), 60 states have call predecessors, (178), 68 states have return successors, (208), 173 states have call predecessors, (208), 174 states have call successors, (208) [2025-01-09 03:53:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1619 transitions. [2025-01-09 03:53:38,552 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1619 transitions. Word has length 174 [2025-01-09 03:53:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:38,552 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1619 transitions. [2025-01-09 03:53:38,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2025-01-09 03:53:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1619 transitions. [2025-01-09 03:53:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-01-09 03:53:38,557 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:38,557 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:38,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 03:53:38,557 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:38,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash 833443554, now seen corresponding path program 1 times [2025-01-09 03:53:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:38,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308935619] [2025-01-09 03:53:38,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:38,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:38,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-01-09 03:53:38,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-01-09 03:53:38,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:38,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 03:53:38,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:38,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308935619] [2025-01-09 03:53:38,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308935619] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:38,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470077474] [2025-01-09 03:53:38,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:38,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:38,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:38,754 INFO L229 MonitoredProcess]: Starting monitored process 7 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 03:53:38,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 03:53:38,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-01-09 03:53:39,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-01-09 03:53:39,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:39,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:39,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:53:39,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:39,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:53:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:39,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470077474] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:53:39,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:53:39,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2025-01-09 03:53:39,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233453069] [2025-01-09 03:53:39,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:53:39,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 03:53:39,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:39,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 03:53:39,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:39,246 INFO L87 Difference]: Start difference. First operand 1043 states and 1619 transitions. Second operand has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2025-01-09 03:53:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:39,816 INFO L93 Difference]: Finished difference Result 2907 states and 4709 transitions. [2025-01-09 03:53:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 03:53:39,816 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 175 [2025-01-09 03:53:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:39,827 INFO L225 Difference]: With dead ends: 2907 [2025-01-09 03:53:39,828 INFO L226 Difference]: Without dead ends: 1917 [2025-01-09 03:53:39,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2025-01-09 03:53:39,832 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1501 mSDsluCounter, 3413 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 4040 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:39,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 4040 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:53:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2025-01-09 03:53:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1869. [2025-01-09 03:53:39,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1464 states have (on average 1.6086065573770492) internal successors, (2355), 1482 states have internal predecessors, (2355), 336 states have call successors, (336), 61 states have call predecessors, (336), 68 states have return successors, (391), 331 states have call predecessors, (391), 332 states have call successors, (391) [2025-01-09 03:53:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 3082 transitions. [2025-01-09 03:53:39,916 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 3082 transitions. Word has length 175 [2025-01-09 03:53:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:39,916 INFO L471 AbstractCegarLoop]: Abstraction has 1869 states and 3082 transitions. [2025-01-09 03:53:39,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2025-01-09 03:53:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 3082 transitions. [2025-01-09 03:53:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-01-09 03:53:39,926 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:39,926 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:39,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 03:53:40,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-09 03:53:40,127 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:40,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash 984694121, now seen corresponding path program 1 times [2025-01-09 03:53:40,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:40,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344759991] [2025-01-09 03:53:40,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:40,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:40,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-01-09 03:53:40,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-01-09 03:53:40,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:40,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:40,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:40,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344759991] [2025-01-09 03:53:40,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344759991] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:40,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:40,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:40,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362934110] [2025-01-09 03:53:40,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:40,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:40,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:40,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:40,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:40,202 INFO L87 Difference]: Start difference. First operand 1869 states and 3082 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:40,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:40,293 INFO L93 Difference]: Finished difference Result 4371 states and 7333 transitions. [2025-01-09 03:53:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:40,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2025-01-09 03:53:40,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:40,307 INFO L225 Difference]: With dead ends: 4371 [2025-01-09 03:53:40,308 INFO L226 Difference]: Without dead ends: 2651 [2025-01-09 03:53:40,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:40,316 INFO L435 NwaCegarLoop]: 653 mSDtfsCounter, 131 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1285 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 03:53:40,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1285 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:40,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2025-01-09 03:53:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2635. [2025-01-09 03:53:40,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2072 states have (on average 1.6317567567567568) internal successors, (3381), 2090 states have internal predecessors, (3381), 494 states have call successors, (494), 61 states have call predecessors, (494), 68 states have return successors, (574), 489 states have call predecessors, (574), 490 states have call successors, (574) [2025-01-09 03:53:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 4449 transitions. [2025-01-09 03:53:40,433 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 4449 transitions. Word has length 179 [2025-01-09 03:53:40,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:40,433 INFO L471 AbstractCegarLoop]: Abstraction has 2635 states and 4449 transitions. [2025-01-09 03:53:40,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:40,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 4449 transitions. [2025-01-09 03:53:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-09 03:53:40,448 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:40,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:40,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 03:53:40,449 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:40,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash 760939994, now seen corresponding path program 1 times [2025-01-09 03:53:40,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:40,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879330728] [2025-01-09 03:53:40,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:40,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:40,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 03:53:40,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 03:53:40,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:40,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:40,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:40,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879330728] [2025-01-09 03:53:40,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879330728] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:40,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:40,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:40,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326559955] [2025-01-09 03:53:40,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:40,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:40,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:40,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:40,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:40,515 INFO L87 Difference]: Start difference. First operand 2635 states and 4449 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:40,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:40,649 INFO L93 Difference]: Finished difference Result 6285 states and 10710 transitions. [2025-01-09 03:53:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:40,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 180 [2025-01-09 03:53:40,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:40,666 INFO L225 Difference]: With dead ends: 6285 [2025-01-09 03:53:40,666 INFO L226 Difference]: Without dead ends: 3901 [2025-01-09 03:53:40,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:40,672 INFO L435 NwaCegarLoop]: 643 mSDtfsCounter, 129 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1278 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 03:53:40,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1278 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2025-01-09 03:53:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 3885. [2025-01-09 03:53:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 3084 states have (on average 1.644941634241245) internal successors, (5073), 3102 states have internal predecessors, (5073), 732 states have call successors, (732), 61 states have call predecessors, (732), 68 states have return successors, (828), 727 states have call predecessors, (828), 728 states have call successors, (828) [2025-01-09 03:53:40,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 6633 transitions. [2025-01-09 03:53:40,820 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 6633 transitions. Word has length 180 [2025-01-09 03:53:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:40,821 INFO L471 AbstractCegarLoop]: Abstraction has 3885 states and 6633 transitions. [2025-01-09 03:53:40,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 6633 transitions. [2025-01-09 03:53:40,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 03:53:40,837 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:40,838 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:40,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 03:53:40,838 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:40,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:40,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1965007237, now seen corresponding path program 1 times [2025-01-09 03:53:40,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:40,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854007918] [2025-01-09 03:53:40,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:40,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:53:40,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:53:40,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:40,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:40,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:40,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854007918] [2025-01-09 03:53:40,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854007918] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:40,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:40,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:40,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410514960] [2025-01-09 03:53:40,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:40,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:40,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:40,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:40,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:40,896 INFO L87 Difference]: Start difference. First operand 3885 states and 6633 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:41,093 INFO L93 Difference]: Finished difference Result 9189 states and 15842 transitions. [2025-01-09 03:53:41,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:41,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2025-01-09 03:53:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:41,130 INFO L225 Difference]: With dead ends: 9189 [2025-01-09 03:53:41,130 INFO L226 Difference]: Without dead ends: 5817 [2025-01-09 03:53:41,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:41,145 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 127 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1273 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 03:53:41,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1273 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:41,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2025-01-09 03:53:41,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5801. [2025-01-09 03:53:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 4676 states have (on average 1.6554747647562018) internal successors, (7741), 4694 states have internal predecessors, (7741), 1056 states have call successors, (1056), 61 states have call predecessors, (1056), 68 states have return successors, (1202), 1051 states have call predecessors, (1202), 1052 states have call successors, (1202) [2025-01-09 03:53:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 9999 transitions. [2025-01-09 03:53:41,416 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 9999 transitions. Word has length 181 [2025-01-09 03:53:41,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:41,417 INFO L471 AbstractCegarLoop]: Abstraction has 5801 states and 9999 transitions. [2025-01-09 03:53:41,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:41,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 9999 transitions. [2025-01-09 03:53:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-01-09 03:53:41,442 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:41,442 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:41,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 03:53:41,442 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:41,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:41,443 INFO L85 PathProgramCache]: Analyzing trace with hash -384340167, now seen corresponding path program 1 times [2025-01-09 03:53:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61569933] [2025-01-09 03:53:41,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:41,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:41,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 03:53:41,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 03:53:41,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:41,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:41,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:41,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61569933] [2025-01-09 03:53:41,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61569933] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:41,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:41,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:41,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802453428] [2025-01-09 03:53:41,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:41,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:41,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:41,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:41,501 INFO L87 Difference]: Start difference. First operand 5801 states and 9999 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:41,699 INFO L93 Difference]: Finished difference Result 13775 states and 23958 transitions. [2025-01-09 03:53:41,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:41,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2025-01-09 03:53:41,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:41,736 INFO L225 Difference]: With dead ends: 13775 [2025-01-09 03:53:41,736 INFO L226 Difference]: Without dead ends: 8911 [2025-01-09 03:53:41,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:41,754 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 125 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1273 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 03:53:41,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1273 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:41,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8911 states. [2025-01-09 03:53:42,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8911 to 8895. [2025-01-09 03:53:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 7280 states have (on average 1.6630494505494506) internal successors, (12107), 7298 states have internal predecessors, (12107), 1546 states have call successors, (1546), 61 states have call predecessors, (1546), 68 states have return successors, (1775), 1541 states have call predecessors, (1775), 1542 states have call successors, (1775) [2025-01-09 03:53:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 15428 transitions. [2025-01-09 03:53:42,090 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 15428 transitions. Word has length 182 [2025-01-09 03:53:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:42,090 INFO L471 AbstractCegarLoop]: Abstraction has 8895 states and 15428 transitions. [2025-01-09 03:53:42,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 15428 transitions. [2025-01-09 03:53:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-01-09 03:53:42,121 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:42,121 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:42,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 03:53:42,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:42,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1551118296, now seen corresponding path program 1 times [2025-01-09 03:53:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:42,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643070589] [2025-01-09 03:53:42,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:42,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:42,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 03:53:42,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 03:53:42,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:42,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-09 03:53:42,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:42,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643070589] [2025-01-09 03:53:42,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643070589] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:42,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:42,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:42,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968784464] [2025-01-09 03:53:42,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:42,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:42,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:42,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:42,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:42,173 INFO L87 Difference]: Start difference. First operand 8895 states and 15428 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:42,460 INFO L93 Difference]: Finished difference Result 21963 states and 38353 transitions. [2025-01-09 03:53:42,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2025-01-09 03:53:42,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:42,506 INFO L225 Difference]: With dead ends: 21963 [2025-01-09 03:53:42,506 INFO L226 Difference]: Without dead ends: 14487 [2025-01-09 03:53:42,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:42,527 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 123 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1288 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 03:53:42,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1288 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:42,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14487 states. [2025-01-09 03:53:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14487 to 14471. [2025-01-09 03:53:43,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14471 states, 11870 states have (on average 1.6609098567818028) internal successors, (19715), 11888 states have internal predecessors, (19715), 2532 states have call successors, (2532), 61 states have call predecessors, (2532), 68 states have return successors, (2905), 2527 states have call predecessors, (2905), 2528 states have call successors, (2905) [2025-01-09 03:53:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14471 states to 14471 states and 25152 transitions. [2025-01-09 03:53:43,196 INFO L78 Accepts]: Start accepts. Automaton has 14471 states and 25152 transitions. Word has length 164 [2025-01-09 03:53:43,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:43,197 INFO L471 AbstractCegarLoop]: Abstraction has 14471 states and 25152 transitions. [2025-01-09 03:53:43,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 14471 states and 25152 transitions. [2025-01-09 03:53:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-01-09 03:53:43,242 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:43,243 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:43,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 03:53:43,243 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:43,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:43,243 INFO L85 PathProgramCache]: Analyzing trace with hash 704847650, now seen corresponding path program 1 times [2025-01-09 03:53:43,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:43,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824349120] [2025-01-09 03:53:43,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:43,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:43,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 03:53:43,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 03:53:43,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:43,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-09 03:53:43,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:43,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824349120] [2025-01-09 03:53:43,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824349120] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:43,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:43,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091969724] [2025-01-09 03:53:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:43,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:43,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:43,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:43,314 INFO L87 Difference]: Start difference. First operand 14471 states and 25152 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:43,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:43,983 INFO L93 Difference]: Finished difference Result 36537 states and 63865 transitions. [2025-01-09 03:53:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:43,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2025-01-09 03:53:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:44,070 INFO L225 Difference]: With dead ends: 36537 [2025-01-09 03:53:44,070 INFO L226 Difference]: Without dead ends: 24257 [2025-01-09 03:53:44,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:44,101 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 121 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1276 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 03:53:44,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1276 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24257 states. [2025-01-09 03:53:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24257 to 24241. [2025-01-09 03:53:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24241 states, 19996 states have (on average 1.6617823564712944) internal successors, (33229), 20014 states have internal predecessors, (33229), 4176 states have call successors, (4176), 61 states have call predecessors, (4176), 68 states have return successors, (4738), 4171 states have call predecessors, (4738), 4172 states have call successors, (4738) [2025-01-09 03:53:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24241 states to 24241 states and 42143 transitions. [2025-01-09 03:53:44,991 INFO L78 Accepts]: Start accepts. Automaton has 24241 states and 42143 transitions. Word has length 165 [2025-01-09 03:53:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:44,991 INFO L471 AbstractCegarLoop]: Abstraction has 24241 states and 42143 transitions. [2025-01-09 03:53:44,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 24241 states and 42143 transitions. [2025-01-09 03:53:45,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-01-09 03:53:45,069 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:45,069 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:45,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 03:53:45,070 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:45,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1927130563, now seen corresponding path program 1 times [2025-01-09 03:53:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660416590] [2025-01-09 03:53:45,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:45,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:45,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-01-09 03:53:45,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-01-09 03:53:45,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:45,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:53:45,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:45,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660416590] [2025-01-09 03:53:45,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660416590] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:45,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:45,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442697126] [2025-01-09 03:53:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:45,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:45,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:45,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:45,140 INFO L87 Difference]: Start difference. First operand 24241 states and 42143 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:46,149 INFO L93 Difference]: Finished difference Result 57977 states and 100723 transitions. [2025-01-09 03:53:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:46,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 185 [2025-01-09 03:53:46,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:46,315 INFO L225 Difference]: With dead ends: 57977 [2025-01-09 03:53:46,316 INFO L226 Difference]: Without dead ends: 37831 [2025-01-09 03:53:46,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:46,381 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 119 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1248 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 03:53:46,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1248 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37831 states. [2025-01-09 03:53:48,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37831 to 37815. [2025-01-09 03:53:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37815 states, 31164 states have (on average 1.6376909254267744) internal successors, (51037), 31182 states have internal predecessors, (51037), 6582 states have call successors, (6582), 61 states have call predecessors, (6582), 68 states have return successors, (7569), 6577 states have call predecessors, (7569), 6578 states have call successors, (7569) [2025-01-09 03:53:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37815 states to 37815 states and 65188 transitions. [2025-01-09 03:53:48,259 INFO L78 Accepts]: Start accepts. Automaton has 37815 states and 65188 transitions. Word has length 185 [2025-01-09 03:53:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:48,260 INFO L471 AbstractCegarLoop]: Abstraction has 37815 states and 65188 transitions. [2025-01-09 03:53:48,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:53:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 37815 states and 65188 transitions. [2025-01-09 03:53:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-01-09 03:53:48,358 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:48,358 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:48,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 03:53:48,359 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:48,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1183236035, now seen corresponding path program 1 times [2025-01-09 03:53:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:48,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741920625] [2025-01-09 03:53:48,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:48,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:48,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-01-09 03:53:48,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-01-09 03:53:48,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:48,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-09 03:53:48,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:48,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741920625] [2025-01-09 03:53:48,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741920625] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:48,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:48,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:48,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647945396] [2025-01-09 03:53:48,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:48,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:48,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:48,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:48,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:48,422 INFO L87 Difference]: Start difference. First operand 37815 states and 65188 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:49,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:49,785 INFO L93 Difference]: Finished difference Result 99961 states and 173002 transitions. [2025-01-09 03:53:49,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:49,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2025-01-09 03:53:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:50,104 INFO L225 Difference]: With dead ends: 99961 [2025-01-09 03:53:50,104 INFO L226 Difference]: Without dead ends: 67467 [2025-01-09 03:53:50,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:50,204 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 117 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1276 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 03:53:50,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1276 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67467 states. [2025-01-09 03:53:52,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67467 to 67451. [2025-01-09 03:53:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67451 states, 55900 states have (on average 1.6344007155635063) internal successors, (91363), 55918 states have internal predecessors, (91363), 11482 states have call successors, (11482), 61 states have call predecessors, (11482), 68 states have return successors, (13283), 11477 states have call predecessors, (13283), 11478 states have call successors, (13283) [2025-01-09 03:53:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67451 states to 67451 states and 116128 transitions. [2025-01-09 03:53:53,323 INFO L78 Accepts]: Start accepts. Automaton has 67451 states and 116128 transitions. Word has length 167 [2025-01-09 03:53:53,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:53,324 INFO L471 AbstractCegarLoop]: Abstraction has 67451 states and 116128 transitions. [2025-01-09 03:53:53,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 67451 states and 116128 transitions. [2025-01-09 03:53:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:53:53,470 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:53,470 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:53,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-09 03:53:53,471 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:53,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2078468300, now seen corresponding path program 1 times [2025-01-09 03:53:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430909180] [2025-01-09 03:53:53,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:53,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:53,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:53:53,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:53:53,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:53,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-09 03:53:53,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:53,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430909180] [2025-01-09 03:53:53,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430909180] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:53,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:53,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:53,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761304096] [2025-01-09 03:53:53,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:53,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:53,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:53,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:53,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:53,550 INFO L87 Difference]: Start difference. First operand 67451 states and 116128 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:53:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:57,104 INFO L93 Difference]: Finished difference Result 184035 states and 317286 transitions. [2025-01-09 03:53:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2025-01-09 03:53:57,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:57,668 INFO L225 Difference]: With dead ends: 184035 [2025-01-09 03:53:57,668 INFO L226 Difference]: Without dead ends: 123663 [2025-01-09 03:53:57,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:57,837 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 115 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1276 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 03:53:57,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1276 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123663 states. [2025-01-09 03:54:02,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123663 to 123647. [2025-01-09 03:54:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123647 states, 103070 states have (on average 1.6299117104880179) internal successors, (167995), 103088 states have internal predecessors, (167995), 20508 states have call successors, (20508), 61 states have call predecessors, (20508), 68 states have return successors, (23373), 20503 states have call predecessors, (23373), 20504 states have call successors, (23373) [2025-01-09 03:54:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123647 states to 123647 states and 211876 transitions. [2025-01-09 03:54:02,975 INFO L78 Accepts]: Start accepts. Automaton has 123647 states and 211876 transitions. Word has length 168 [2025-01-09 03:54:02,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:54:02,976 INFO L471 AbstractCegarLoop]: Abstraction has 123647 states and 211876 transitions. [2025-01-09 03:54:02,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:54:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 123647 states and 211876 transitions. [2025-01-09 03:54:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-01-09 03:54:03,220 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:54:03,221 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:54:03,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-09 03:54:03,221 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:54:03,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:54:03,221 INFO L85 PathProgramCache]: Analyzing trace with hash 109925460, now seen corresponding path program 1 times [2025-01-09 03:54:03,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:54:03,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433266081] [2025-01-09 03:54:03,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:54:03,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:54:03,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-01-09 03:54:03,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-01-09 03:54:03,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:54:03,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:54:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-01-09 03:54:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:54:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433266081] [2025-01-09 03:54:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433266081] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:54:03,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:54:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:54:03,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599319819] [2025-01-09 03:54:03,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:54:03,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:54:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:54:03,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:54:03,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:54:03,285 INFO L87 Difference]: Start difference. First operand 123647 states and 211876 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)