./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product34.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_product34.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 34d763a2f472f3a687bfbf36d5640fefeb493025c54d66615a1e88fff5fbc163 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:53:35,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:53:35,526 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:53:35,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:53:35,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:53:35,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:53:35,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:53:35,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:53:35,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:53:35,566 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:53:35,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:53:35,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:53:35,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:53:35,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:53:35,568 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:53:35,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:53:35,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:53:35,568 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:53:35,569 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:53:35,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:53:35,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:53:35,570 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:53:35,570 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:53:35,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:53:35,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:53:35,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:53:35,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:35,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:53:35,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:53:35,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:53:35,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:53:35,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:35,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:53:35,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:53:35,572 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:53:35,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:53:35,573 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 -> 34d763a2f472f3a687bfbf36d5640fefeb493025c54d66615a1e88fff5fbc163 [2025-01-09 03:53:35,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:53:35,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:53:35,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:53:35,917 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:53:35,918 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:53:35,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product34.cil.c [2025-01-09 03:53:37,321 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e5c32a21/ef3fca0981ee4666bf5f5b5d5a748eb7/FLAGb02af430c [2025-01-09 03:53:37,746 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:53:37,746 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product34.cil.c [2025-01-09 03:53:37,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e5c32a21/ef3fca0981ee4666bf5f5b5d5a748eb7/FLAGb02af430c [2025-01-09 03:53:37,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6e5c32a21/ef3fca0981ee4666bf5f5b5d5a748eb7 [2025-01-09 03:53:37,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:53:37,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:53:37,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:53:37,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:53:37,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:53:37,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:53:37" (1/1) ... [2025-01-09 03:53:37,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4b41c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:37, skipping insertion in model container [2025-01-09 03:53:37,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:53:37" (1/1) ... [2025-01-09 03:53:37,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:53:38,301 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_product34.cil.c[43803,43816] [2025-01-09 03:53:38,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:53:38,415 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:53:38,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [48] [2025-01-09 03:53:38,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] [2025-01-09 03:53:38,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [444] [2025-01-09 03:53:38,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1512] [2025-01-09 03:53:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1926] [2025-01-09 03:53:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1961] [2025-01-09 03:53:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2098] [2025-01-09 03:53:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2107] [2025-01-09 03:53:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2124] [2025-01-09 03:53:38,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2025-01-09 03:53:38,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2025-01-09 03:53:38,504 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_product34.cil.c[43803,43816] [2025-01-09 03:53:38,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:53:38,574 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:53:38,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38 WrapperNode [2025-01-09 03:53:38,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:53:38,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:53:38,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:53:38,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:53:38,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,651 INFO L138 Inliner]: procedures = 135, calls = 226, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1132 [2025-01-09 03:53:38,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:53:38,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:53:38,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:53:38,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:53:38,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,708 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 03:53:38,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,744 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:53:38,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:53:38,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:53:38,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:53:38,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (1/1) ... [2025-01-09 03:53:38,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:38,843 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 03:53:38,850 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 03:53:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2025-01-09 03:53:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2025-01-09 03:53:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2025-01-09 03:53:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2025-01-09 03:53:38,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2025-01-09 03:53:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-01-09 03:53:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-01-09 03:53:38,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-01-09 03:53:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2025-01-09 03:53:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2025-01-09 03:53:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2025-01-09 03:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-01-09 03:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2025-01-09 03:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-01-09 03:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-01-09 03:53:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:53:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:53:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:53:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-01-09 03:53:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-01-09 03:53:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2025-01-09 03:53:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2025-01-09 03:53:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:53:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:53:39,114 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:53:39,116 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:53:40,280 INFO L? ?]: Removed 590 outVars from TransFormulas that were not future-live. [2025-01-09 03:53:40,280 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:53:40,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:53:40,310 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:53:40,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:53:40 BoogieIcfgContainer [2025-01-09 03:53:40,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:53:40,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:53:40,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:53:40,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:53:40,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:53:37" (1/3) ... [2025-01-09 03:53:40,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b39449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:53:40, skipping insertion in model container [2025-01-09 03:53:40,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:38" (2/3) ... [2025-01-09 03:53:40,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b39449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:53:40, skipping insertion in model container [2025-01-09 03:53:40,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:53:40" (3/3) ... [2025-01-09 03:53:40,325 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec3_product34.cil.c [2025-01-09 03:53:40,337 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:53:40,341 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec3_product34.cil.c that has 30 procedures, 457 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:53:40,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:53:40,481 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;@3e8d8f43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:53:40,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:53:40,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 350 states have (on average 1.5314285714285714) internal successors, (536), 357 states have internal predecessors, (536), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2025-01-09 03:53:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 03:53:40,514 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:40,515 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] [2025-01-09 03:53:40,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:40,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:40,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2129391483, now seen corresponding path program 1 times [2025-01-09 03:53:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:40,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335826940] [2025-01-09 03:53:40,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:40,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:40,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:53:40,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:53:40,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:40,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 03:53:41,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:41,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335826940] [2025-01-09 03:53:41,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335826940] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:41,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815049197] [2025-01-09 03:53:41,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:41,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:41,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:41,302 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 03:53:41,305 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 03:53:41,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:53:41,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:53:41,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:41,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:41,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:53:41,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:53:41,783 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815049197] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:41,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:41,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:53:41,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916093607] [2025-01-09 03:53:41,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:41,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:41,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:41,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:41,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:41,814 INFO L87 Difference]: Start difference. First operand has 457 states, 350 states have (on average 1.5314285714285714) internal successors, (536), 357 states have internal predecessors, (536), 76 states have call successors, (76), 29 states have call predecessors, (76), 29 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 03:53:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:41,929 INFO L93 Difference]: Finished difference Result 723 states and 1072 transitions. [2025-01-09 03:53:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:41,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 139 [2025-01-09 03:53:41,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:41,946 INFO L225 Difference]: With dead ends: 723 [2025-01-09 03:53:41,947 INFO L226 Difference]: Without dead ends: 451 [2025-01-09 03:53:41,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 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 03:53:41,955 INFO L435 NwaCegarLoop]: 681 mSDtfsCounter, 1 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1359 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 03:53:41,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1359 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2025-01-09 03:53:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 450. [2025-01-09 03:53:42,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 345 states have (on average 1.527536231884058) internal successors, (527), 350 states have internal predecessors, (527), 76 states have call successors, (76), 29 states have call predecessors, (76), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2025-01-09 03:53:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 676 transitions. [2025-01-09 03:53:42,045 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 676 transitions. Word has length 139 [2025-01-09 03:53:42,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:42,047 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 676 transitions. [2025-01-09 03:53:42,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 03:53:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 676 transitions. [2025-01-09 03:53:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 03:53:42,056 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:42,056 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] [2025-01-09 03:53:42,069 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 03:53:42,261 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 03:53:42,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:42,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1311788500, now seen corresponding path program 1 times [2025-01-09 03:53:42,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591830897] [2025-01-09 03:53:42,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:42,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:42,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 03:53:42,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 03:53:42,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:42,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:42,646 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 03:53:42,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:42,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591830897] [2025-01-09 03:53:42,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591830897] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:42,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645938332] [2025-01-09 03:53:42,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:42,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:42,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:42,652 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 03:53:42,654 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 03:53:42,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 03:53:43,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 03:53:43,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:43,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:43,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:53:43,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:43,081 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 03:53:43,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:43,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645938332] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:43,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:43,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:53:43,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153997405] [2025-01-09 03:53:43,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:43,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:43,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:43,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:43,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:43,088 INFO L87 Difference]: Start difference. First operand 450 states and 676 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 03:53:43,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:43,145 INFO L93 Difference]: Finished difference Result 948 states and 1444 transitions. [2025-01-09 03:53:43,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:43,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 144 [2025-01-09 03:53:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:43,151 INFO L225 Difference]: With dead ends: 948 [2025-01-09 03:53:43,151 INFO L226 Difference]: Without dead ends: 524 [2025-01-09 03:53:43,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 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 03:53:43,154 INFO L435 NwaCegarLoop]: 692 mSDtfsCounter, 134 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1322 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 03:53:43,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1322 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2025-01-09 03:53:43,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 516. [2025-01-09 03:53:43,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 397 states have (on average 1.54911838790932) internal successors, (615), 402 states have internal predecessors, (615), 90 states have call successors, (90), 29 states have call predecessors, (90), 28 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2025-01-09 03:53:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 792 transitions. [2025-01-09 03:53:43,204 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 792 transitions. Word has length 144 [2025-01-09 03:53:43,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:43,204 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 792 transitions. [2025-01-09 03:53:43,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 03:53:43,205 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 792 transitions. [2025-01-09 03:53:43,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-01-09 03:53:43,209 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:43,209 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] [2025-01-09 03:53:43,220 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 03:53:43,412 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 03:53:43,413 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:43,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:43,414 INFO L85 PathProgramCache]: Analyzing trace with hash -904103211, now seen corresponding path program 1 times [2025-01-09 03:53:43,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:43,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997106621] [2025-01-09 03:53:43,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:43,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:43,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 03:53:43,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 03:53:43,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:43,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:43,701 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 03:53:43,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:43,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997106621] [2025-01-09 03:53:43,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997106621] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:43,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124696982] [2025-01-09 03:53:43,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:43,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:43,704 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 03:53:43,708 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 03:53:43,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 03:53:44,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 03:53:44,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:44,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:44,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:53:44,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:44,161 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 03:53:44,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:44,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124696982] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:44,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:44,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-01-09 03:53:44,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582550988] [2025-01-09 03:53:44,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:44,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:44,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:44,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:44,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:44,164 INFO L87 Difference]: Start difference. First operand 516 states and 792 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 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 03:53:44,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:44,241 INFO L93 Difference]: Finished difference Result 1023 states and 1574 transitions. [2025-01-09 03:53:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:44,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 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 164 [2025-01-09 03:53:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:44,247 INFO L225 Difference]: With dead ends: 1023 [2025-01-09 03:53:44,247 INFO L226 Difference]: Without dead ends: 518 [2025-01-09 03:53:44,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 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 03:53:44,250 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 2 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2657 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 03:53:44,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2657 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2025-01-09 03:53:44,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2025-01-09 03:53:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 398 states have (on average 1.5477386934673367) internal successors, (616), 404 states have internal predecessors, (616), 90 states have call successors, (90), 29 states have call predecessors, (90), 29 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2025-01-09 03:53:44,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 795 transitions. [2025-01-09 03:53:44,289 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 795 transitions. Word has length 164 [2025-01-09 03:53:44,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:44,291 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 795 transitions. [2025-01-09 03:53:44,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 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 03:53:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 795 transitions. [2025-01-09 03:53:44,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-01-09 03:53:44,297 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:44,297 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:53:44,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 03:53:44,501 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 03:53:44,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:44,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:44,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1139112416, now seen corresponding path program 1 times [2025-01-09 03:53:44,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443676644] [2025-01-09 03:53:44,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:44,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 03:53:44,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 03:53:44,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:44,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-09 03:53:44,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443676644] [2025-01-09 03:53:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443676644] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735664952] [2025-01-09 03:53:44,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:44,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:44,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:44,774 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 03:53:44,778 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 03:53:44,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 03:53:45,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 03:53:45,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:45,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:45,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:53:45,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:45,217 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 03:53:45,218 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:45,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735664952] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:45,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:45,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-01-09 03:53:45,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40910271] [2025-01-09 03:53:45,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:45,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:45,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:45,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:45,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:45,227 INFO L87 Difference]: Start difference. First operand 518 states and 795 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:45,301 INFO L93 Difference]: Finished difference Result 1025 states and 1579 transitions. [2025-01-09 03:53:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:45,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 165 [2025-01-09 03:53:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:45,306 INFO L225 Difference]: With dead ends: 1025 [2025-01-09 03:53:45,307 INFO L226 Difference]: Without dead ends: 520 [2025-01-09 03:53:45,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 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 03:53:45,310 INFO L435 NwaCegarLoop]: 665 mSDtfsCounter, 2 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2643 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 03:53:45,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2643 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:45,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2025-01-09 03:53:45,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2025-01-09 03:53:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 399 states have (on average 1.5463659147869675) internal successors, (617), 406 states have internal predecessors, (617), 90 states have call successors, (90), 29 states have call predecessors, (90), 30 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2025-01-09 03:53:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 801 transitions. [2025-01-09 03:53:45,340 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 801 transitions. Word has length 165 [2025-01-09 03:53:45,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:45,341 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 801 transitions. [2025-01-09 03:53:45,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:53:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 801 transitions. [2025-01-09 03:53:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-01-09 03:53:45,345 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:45,346 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] [2025-01-09 03:53:45,356 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 03:53:45,549 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 03:53:45,550 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:45,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:45,550 INFO L85 PathProgramCache]: Analyzing trace with hash -413228057, now seen corresponding path program 1 times [2025-01-09 03:53:45,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:45,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361800682] [2025-01-09 03:53:45,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:45,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:45,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-01-09 03:53:45,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-01-09 03:53:45,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:45,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:45,780 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 03:53:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361800682] [2025-01-09 03:53:45,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361800682] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:45,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67571805] [2025-01-09 03:53:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:45,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:45,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:45,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:45,782 INFO L87 Difference]: Start difference. First operand 520 states and 801 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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 03:53:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:45,845 INFO L93 Difference]: Finished difference Result 1017 states and 1570 transitions. [2025-01-09 03:53:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:45,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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 166 [2025-01-09 03:53:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:45,850 INFO L225 Difference]: With dead ends: 1017 [2025-01-09 03:53:45,852 INFO L226 Difference]: Without dead ends: 520 [2025-01-09 03:53:45,854 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 03:53:45,856 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 2 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2661 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 03:53:45,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2661 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:45,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2025-01-09 03:53:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2025-01-09 03:53:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 399 states have (on average 1.5463659147869675) internal successors, (617), 406 states have internal predecessors, (617), 90 states have call successors, (90), 29 states have call predecessors, (90), 30 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2025-01-09 03:53:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 800 transitions. [2025-01-09 03:53:45,885 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 800 transitions. Word has length 166 [2025-01-09 03:53:45,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:45,886 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 800 transitions. [2025-01-09 03:53:45,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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 03:53:45,887 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 800 transitions. [2025-01-09 03:53:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 03:53:45,891 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:45,891 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:53:45,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:53:45,892 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:45,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:45,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1256311725, now seen corresponding path program 1 times [2025-01-09 03:53:45,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:45,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78593588] [2025-01-09 03:53:45,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:45,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:45,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:53:45,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:53:45,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:45,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:46,124 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 03:53:46,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:46,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78593588] [2025-01-09 03:53:46,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78593588] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:46,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:46,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:46,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449801154] [2025-01-09 03:53:46,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:46,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:46,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:46,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:46,127 INFO L87 Difference]: Start difference. First operand 520 states and 800 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 03:53:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:46,191 INFO L93 Difference]: Finished difference Result 1019 states and 1573 transitions. [2025-01-09 03:53:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 148 [2025-01-09 03:53:46,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:46,197 INFO L225 Difference]: With dead ends: 1019 [2025-01-09 03:53:46,198 INFO L226 Difference]: Without dead ends: 522 [2025-01-09 03:53:46,200 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 03:53:46,201 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 1 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2664 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 03:53:46,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2664 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:46,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2025-01-09 03:53:46,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2025-01-09 03:53:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 400 states have (on average 1.545) internal successors, (618), 408 states have internal predecessors, (618), 90 states have call successors, (90), 29 states have call predecessors, (90), 31 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2025-01-09 03:53:46,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 803 transitions. [2025-01-09 03:53:46,234 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 803 transitions. Word has length 148 [2025-01-09 03:53:46,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:46,235 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 803 transitions. [2025-01-09 03:53:46,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 03:53:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 803 transitions. [2025-01-09 03:53:46,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 03:53:46,239 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:46,239 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] [2025-01-09 03:53:46,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:53:46,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:46,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:46,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1198466849, now seen corresponding path program 1 times [2025-01-09 03:53:46,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:46,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230840701] [2025-01-09 03:53:46,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:46,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:46,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:53:46,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:53:46,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:46,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:46,428 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 03:53:46,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:46,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230840701] [2025-01-09 03:53:46,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230840701] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:46,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:46,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:46,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814631263] [2025-01-09 03:53:46,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:46,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:46,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:46,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:46,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:46,431 INFO L87 Difference]: Start difference. First operand 522 states and 803 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 03:53:46,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:46,489 INFO L93 Difference]: Finished difference Result 1021 states and 1576 transitions. [2025-01-09 03:53:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:46,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 149 [2025-01-09 03:53:46,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:46,495 INFO L225 Difference]: With dead ends: 1021 [2025-01-09 03:53:46,495 INFO L226 Difference]: Without dead ends: 524 [2025-01-09 03:53:46,497 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 03:53:46,498 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 0 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:46,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2657 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:46,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2025-01-09 03:53:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2025-01-09 03:53:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 400 states have (on average 1.545) internal successors, (618), 408 states have internal predecessors, (618), 90 states have call successors, (90), 29 states have call predecessors, (90), 31 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2025-01-09 03:53:46,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 803 transitions. [2025-01-09 03:53:46,543 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 803 transitions. Word has length 149 [2025-01-09 03:53:46,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:46,545 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 803 transitions. [2025-01-09 03:53:46,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 03:53:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 803 transitions. [2025-01-09 03:53:46,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 03:53:46,548 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:46,549 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] [2025-01-09 03:53:46,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:53:46,549 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:46,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:46,550 INFO L85 PathProgramCache]: Analyzing trace with hash -528678113, now seen corresponding path program 1 times [2025-01-09 03:53:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726912596] [2025-01-09 03:53:46,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:46,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:53:46,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:53:46,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:46,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:46,735 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 03:53:46,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:46,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726912596] [2025-01-09 03:53:46,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726912596] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:46,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:46,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:46,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380155435] [2025-01-09 03:53:46,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:46,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:46,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:46,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:46,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:46,739 INFO L87 Difference]: Start difference. First operand 522 states and 803 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 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 03:53:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:46,895 INFO L93 Difference]: Finished difference Result 1021 states and 1572 transitions. [2025-01-09 03:53:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:53:46,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 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 149 [2025-01-09 03:53:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:46,902 INFO L225 Difference]: With dead ends: 1021 [2025-01-09 03:53:46,902 INFO L226 Difference]: Without dead ends: 524 [2025-01-09 03:53:46,905 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 03:53:46,905 INFO L435 NwaCegarLoop]: 659 mSDtfsCounter, 7 mSDsluCounter, 3925 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4584 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 03:53:46,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4584 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2025-01-09 03:53:46,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2025-01-09 03:53:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 402 states have (on average 1.5422885572139304) internal successors, (620), 409 states have internal predecessors, (620), 90 states have call successors, (90), 30 states have call predecessors, (90), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2025-01-09 03:53:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 804 transitions. [2025-01-09 03:53:46,931 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 804 transitions. Word has length 149 [2025-01-09 03:53:46,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:46,931 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 804 transitions. [2025-01-09 03:53:46,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 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 03:53:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 804 transitions. [2025-01-09 03:53:46,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 03:53:46,934 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:46,934 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:53:46,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:53:46,934 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:46,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2069402930, now seen corresponding path program 2 times [2025-01-09 03:53:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485273471] [2025-01-09 03:53:46,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:53:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:46,961 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 150 statements into 2 equivalence classes. [2025-01-09 03:53:46,977 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 03:53:46,977 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:53:46,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:47,136 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 03:53:47,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:47,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485273471] [2025-01-09 03:53:47,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485273471] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:47,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:47,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:53:47,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555656355] [2025-01-09 03:53:47,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:47,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:53:47,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:47,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:53:47,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:53:47,139 INFO L87 Difference]: Start difference. First operand 524 states and 804 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:53:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:47,235 INFO L93 Difference]: Finished difference Result 1021 states and 1576 transitions. [2025-01-09 03:53:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:53:47,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 150 [2025-01-09 03:53:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:47,240 INFO L225 Difference]: With dead ends: 1021 [2025-01-09 03:53:47,240 INFO L226 Difference]: Without dead ends: 526 [2025-01-09 03:53:47,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:53:47,243 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 2 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:47,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3312 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2025-01-09 03:53:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2025-01-09 03:53:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 403 states have (on average 1.5409429280397022) internal successors, (621), 411 states have internal predecessors, (621), 90 states have call successors, (90), 30 states have call predecessors, (90), 32 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2025-01-09 03:53:47,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 810 transitions. [2025-01-09 03:53:47,267 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 810 transitions. Word has length 150 [2025-01-09 03:53:47,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:47,267 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 810 transitions. [2025-01-09 03:53:47,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:53:47,267 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 810 transitions. [2025-01-09 03:53:47,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-01-09 03:53:47,270 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:47,270 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, 1] [2025-01-09 03:53:47,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 03:53:47,271 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:47,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2127792355, now seen corresponding path program 1 times [2025-01-09 03:53:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:47,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563676064] [2025-01-09 03:53:47,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:47,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:47,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 03:53:47,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 03:53:47,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:47,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563676064] [2025-01-09 03:53:47,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563676064] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73339158] [2025-01-09 03:53:47,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:47,422 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 03:53:47,425 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 03:53:47,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 03:53:47,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 03:53:47,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:47,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:47,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:53:47,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:47,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:53:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73339158] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:53:47,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:53:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-01-09 03:53:47,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961857220] [2025-01-09 03:53:47,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:53:47,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:53:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:47,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:53:47,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:53:47,986 INFO L87 Difference]: Start difference. First operand 526 states and 810 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2025-01-09 03:53:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:48,194 INFO L93 Difference]: Finished difference Result 1220 states and 1942 transitions. [2025-01-09 03:53:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:53:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 170 [2025-01-09 03:53:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:48,203 INFO L225 Difference]: With dead ends: 1220 [2025-01-09 03:53:48,203 INFO L226 Difference]: Without dead ends: 962 [2025-01-09 03:53:48,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:53:48,206 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 615 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:48,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 3045 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2025-01-09 03:53:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 938. [2025-01-09 03:53:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 736 states have (on average 1.6141304347826086) internal successors, (1188), 744 states have internal predecessors, (1188), 169 states have call successors, (169), 30 states have call predecessors, (169), 32 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2025-01-09 03:53:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1545 transitions. [2025-01-09 03:53:48,255 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1545 transitions. Word has length 170 [2025-01-09 03:53:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:48,256 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1545 transitions. [2025-01-09 03:53:48,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2025-01-09 03:53:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1545 transitions. [2025-01-09 03:53:48,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-01-09 03:53:48,262 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:48,262 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, 1, 1, 1, 1] [2025-01-09 03:53:48,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 03:53:48,466 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 03:53:48,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:48,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:48,468 INFO L85 PathProgramCache]: Analyzing trace with hash 542950729, now seen corresponding path program 1 times [2025-01-09 03:53:48,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:48,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238065715] [2025-01-09 03:53:48,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:48,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:48,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:53:48,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:53:48,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:48,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:53:48,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:48,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238065715] [2025-01-09 03:53:48,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238065715] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:48,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:48,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:48,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315920447] [2025-01-09 03:53:48,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:48,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:48,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:48,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:48,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:48,551 INFO L87 Difference]: Start difference. First operand 938 states and 1545 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 03:53:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:48,605 INFO L93 Difference]: Finished difference Result 2224 states and 3720 transitions. [2025-01-09 03:53:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 158 [2025-01-09 03:53:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:48,616 INFO L225 Difference]: With dead ends: 2224 [2025-01-09 03:53:48,616 INFO L226 Difference]: Without dead ends: 1354 [2025-01-09 03:53:48,621 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 03:53:48,621 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 132 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1367 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 03:53:48,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1367 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2025-01-09 03:53:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1346. [2025-01-09 03:53:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1065 states have (on average 1.6347417840375587) internal successors, (1741), 1073 states have internal predecessors, (1741), 248 states have call successors, (248), 30 states have call predecessors, (248), 32 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2025-01-09 03:53:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 2266 transitions. [2025-01-09 03:53:48,709 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 2266 transitions. Word has length 158 [2025-01-09 03:53:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:48,709 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 2266 transitions. [2025-01-09 03:53:48,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 03:53:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 2266 transitions. [2025-01-09 03:53:48,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-01-09 03:53:48,718 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:48,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:48,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 03:53:48,718 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:48,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:48,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1311743419, now seen corresponding path program 1 times [2025-01-09 03:53:48,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:48,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341237375] [2025-01-09 03:53:48,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:48,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:48,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-01-09 03:53:48,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-01-09 03:53:48,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:48,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:48,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:48,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341237375] [2025-01-09 03:53:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341237375] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:48,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:48,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123981307] [2025-01-09 03:53:48,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:48,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:48,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:48,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:48,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:48,825 INFO L87 Difference]: Start difference. First operand 1346 states and 2266 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 03:53:48,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:48,929 INFO L93 Difference]: Finished difference Result 3221 states and 5465 transitions. [2025-01-09 03:53:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:48,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 178 [2025-01-09 03:53:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:48,947 INFO L225 Difference]: With dead ends: 3221 [2025-01-09 03:53:48,947 INFO L226 Difference]: Without dead ends: 1994 [2025-01-09 03:53:48,955 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 03:53:48,956 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 130 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1352 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 03:53:48,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1352 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2025-01-09 03:53:49,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1986. [2025-01-09 03:53:49,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1586 states have (on average 1.6494325346784364) internal successors, (2616), 1594 states have internal predecessors, (2616), 367 states have call successors, (367), 30 states have call predecessors, (367), 32 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2025-01-09 03:53:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 3379 transitions. [2025-01-09 03:53:49,082 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 3379 transitions. Word has length 178 [2025-01-09 03:53:49,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:49,083 INFO L471 AbstractCegarLoop]: Abstraction has 1986 states and 3379 transitions. [2025-01-09 03:53:49,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 03:53:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 3379 transitions. [2025-01-09 03:53:49,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-01-09 03:53:49,097 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:49,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:49,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 03:53:49,098 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:49,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:49,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1720537078, now seen corresponding path program 1 times [2025-01-09 03:53:49,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:49,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158408356] [2025-01-09 03:53:49,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:49,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:49,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-01-09 03:53:49,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-01-09 03:53:49,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:49,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:49,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:49,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158408356] [2025-01-09 03:53:49,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158408356] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:49,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:49,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:49,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112340970] [2025-01-09 03:53:49,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:49,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:49,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:49,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:49,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:49,194 INFO L87 Difference]: Start difference. First operand 1986 states and 3379 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, (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 03:53:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:49,312 INFO L93 Difference]: Finished difference Result 4723 states and 8105 transitions. [2025-01-09 03:53:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:49,312 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, (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 03:53:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:49,334 INFO L225 Difference]: With dead ends: 4723 [2025-01-09 03:53:49,334 INFO L226 Difference]: Without dead ends: 2977 [2025-01-09 03:53:49,344 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 03:53:49,345 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 128 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1339 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 03:53:49,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1339 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:49,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2025-01-09 03:53:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2969. [2025-01-09 03:53:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2407 states have (on average 1.6609887827170753) internal successors, (3998), 2415 states have internal predecessors, (3998), 529 states have call successors, (529), 30 states have call predecessors, (529), 32 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2025-01-09 03:53:49,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 5101 transitions. [2025-01-09 03:53:49,499 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 5101 transitions. Word has length 179 [2025-01-09 03:53:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:49,499 INFO L471 AbstractCegarLoop]: Abstraction has 2969 states and 5101 transitions. [2025-01-09 03:53:49,500 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, (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 03:53:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 5101 transitions. [2025-01-09 03:53:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-01-09 03:53:49,518 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:49,518 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, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:49,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 03:53:49,518 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:49,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1992580189, now seen corresponding path program 1 times [2025-01-09 03:53:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093687301] [2025-01-09 03:53:49,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:49,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:49,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-01-09 03:53:49,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-01-09 03:53:49,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:49,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:53:49,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:49,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093687301] [2025-01-09 03:53:49,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093687301] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:49,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:49,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:49,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535135222] [2025-01-09 03:53:49,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:49,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:49,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:49,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:49,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:49,593 INFO L87 Difference]: Start difference. First operand 2969 states and 5101 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 03:53:49,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:49,768 INFO L93 Difference]: Finished difference Result 7101 states and 12291 transitions. [2025-01-09 03:53:49,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:49,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 161 [2025-01-09 03:53:49,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:49,800 INFO L225 Difference]: With dead ends: 7101 [2025-01-09 03:53:49,800 INFO L226 Difference]: Without dead ends: 4569 [2025-01-09 03:53:49,810 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 03:53:49,810 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 126 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1339 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 03:53:49,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1339 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:49,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2025-01-09 03:53:50,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 4561. [2025-01-09 03:53:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4561 states, 3754 states have (on average 1.6691529035695258) internal successors, (6266), 3762 states have internal predecessors, (6266), 774 states have call successors, (774), 30 states have call predecessors, (774), 32 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2025-01-09 03:53:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 7885 transitions. [2025-01-09 03:53:50,057 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 7885 transitions. Word has length 161 [2025-01-09 03:53:50,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:50,058 INFO L471 AbstractCegarLoop]: Abstraction has 4561 states and 7885 transitions. [2025-01-09 03:53:50,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 03:53:50,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 7885 transitions. [2025-01-09 03:53:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-01-09 03:53:50,086 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:50,086 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:50,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 03:53:50,086 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:50,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:50,087 INFO L85 PathProgramCache]: Analyzing trace with hash 965547623, now seen corresponding path program 1 times [2025-01-09 03:53:50,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:50,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644596902] [2025-01-09 03:53:50,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:50,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:50,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-09 03:53:50,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-09 03:53:50,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:50,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:53:50,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:50,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644596902] [2025-01-09 03:53:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644596902] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:50,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:50,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:50,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342885366] [2025-01-09 03:53:50,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:50,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:50,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:50,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:50,170 INFO L87 Difference]: Start difference. First operand 4561 states and 7885 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 03:53:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:50,376 INFO L93 Difference]: Finished difference Result 11070 states and 19274 transitions. [2025-01-09 03:53:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 162 [2025-01-09 03:53:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:50,440 INFO L225 Difference]: With dead ends: 11070 [2025-01-09 03:53:50,440 INFO L226 Difference]: Without dead ends: 7247 [2025-01-09 03:53:50,459 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 03:53:50,460 INFO L435 NwaCegarLoop]: 686 mSDtfsCounter, 124 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1350 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 03:53:50,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1350 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7247 states. [2025-01-09 03:53:50,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7247 to 7239. [2025-01-09 03:53:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7239 states, 5939 states have (on average 1.6696413537632597) internal successors, (9916), 5947 states have internal predecessors, (9916), 1267 states have call successors, (1267), 30 states have call predecessors, (1267), 32 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2025-01-09 03:53:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7239 states to 7239 states and 12565 transitions. [2025-01-09 03:53:50,929 INFO L78 Accepts]: Start accepts. Automaton has 7239 states and 12565 transitions. Word has length 162 [2025-01-09 03:53:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:50,930 INFO L471 AbstractCegarLoop]: Abstraction has 7239 states and 12565 transitions. [2025-01-09 03:53:50,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 03:53:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand 7239 states and 12565 transitions. [2025-01-09 03:53:50,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-01-09 03:53:50,975 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:50,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:50,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 03:53:50,976 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:50,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash 611324480, now seen corresponding path program 1 times [2025-01-09 03:53:50,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:50,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370878525] [2025-01-09 03:53:50,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:50,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:51,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 03:53:51,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 03:53:51,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:51,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:51,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:51,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370878525] [2025-01-09 03:53:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370878525] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:51,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:51,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:51,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416545882] [2025-01-09 03:53:51,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:51,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:51,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:51,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:51,085 INFO L87 Difference]: Start difference. First operand 7239 states and 12565 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 03:53:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:51,448 INFO L93 Difference]: Finished difference Result 18272 states and 31914 transitions. [2025-01-09 03:53:51,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:51,449 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 182 [2025-01-09 03:53:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:51,520 INFO L225 Difference]: With dead ends: 18272 [2025-01-09 03:53:51,520 INFO L226 Difference]: Without dead ends: 12132 [2025-01-09 03:53:51,555 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 03:53:51,556 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 122 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:51,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1344 Invalid, 4 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:51,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12132 states. [2025-01-09 03:53:52,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12132 to 12124. [2025-01-09 03:53:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12124 states, 10002 states have (on average 1.670865826834633) internal successors, (16712), 10010 states have internal predecessors, (16712), 2089 states have call successors, (2089), 30 states have call predecessors, (2089), 32 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2025-01-09 03:53:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12124 states to 12124 states and 21083 transitions. [2025-01-09 03:53:52,204 INFO L78 Accepts]: Start accepts. Automaton has 12124 states and 21083 transitions. Word has length 182 [2025-01-09 03:53:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:52,204 INFO L471 AbstractCegarLoop]: Abstraction has 12124 states and 21083 transitions. [2025-01-09 03:53:52,204 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 03:53:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 12124 states and 21083 transitions. [2025-01-09 03:53:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-01-09 03:53:52,263 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:52,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:52,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 03:53:52,263 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:52,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:52,264 INFO L85 PathProgramCache]: Analyzing trace with hash 262155340, now seen corresponding path program 1 times [2025-01-09 03:53:52,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:52,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379320299] [2025-01-09 03:53:52,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:52,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:52,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-01-09 03:53:52,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-01-09 03:53:52,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:52,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-09 03:53:52,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:52,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379320299] [2025-01-09 03:53:52,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379320299] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:52,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:52,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:52,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990298771] [2025-01-09 03:53:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:52,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:52,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:52,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:52,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:52,345 INFO L87 Difference]: Start difference. First operand 12124 states and 21083 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 03:53:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:52,903 INFO L93 Difference]: Finished difference Result 28992 states and 50360 transitions. [2025-01-09 03:53:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:52,904 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 183 [2025-01-09 03:53:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:53,009 INFO L225 Difference]: With dead ends: 28992 [2025-01-09 03:53:53,010 INFO L226 Difference]: Without dead ends: 18919 [2025-01-09 03:53:53,058 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 03:53:53,060 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 120 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:53,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1314 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18919 states. [2025-01-09 03:53:54,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18919 to 18911. [2025-01-09 03:53:54,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18911 states, 15586 states have (on average 1.6481457718465289) internal successors, (25688), 15594 states have internal predecessors, (25688), 3292 states have call successors, (3292), 30 states have call predecessors, (3292), 32 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2025-01-09 03:53:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18911 states to 18911 states and 32609 transitions. [2025-01-09 03:53:54,260 INFO L78 Accepts]: Start accepts. Automaton has 18911 states and 32609 transitions. Word has length 183 [2025-01-09 03:53:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:54,261 INFO L471 AbstractCegarLoop]: Abstraction has 18911 states and 32609 transitions. [2025-01-09 03:53:54,261 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 03:53:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 18911 states and 32609 transitions. [2025-01-09 03:53:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-01-09 03:53:54,324 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:54,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:54,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 03:53:54,325 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:54,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:54,325 INFO L85 PathProgramCache]: Analyzing trace with hash 744151394, now seen corresponding path program 1 times [2025-01-09 03:53:54,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:54,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512430895] [2025-01-09 03:53:54,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:54,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:54,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 03:53:54,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 03:53:54,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:54,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:53:54,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:54,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512430895] [2025-01-09 03:53:54,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512430895] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:54,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:54,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:54,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845768867] [2025-01-09 03:53:54,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:54,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:54,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:54,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:54,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:54,402 INFO L87 Difference]: Start difference. First operand 18911 states and 32609 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 03:53:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:55,190 INFO L93 Difference]: Finished difference Result 49984 states and 86500 transitions. [2025-01-09 03:53:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:55,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 03:53:55,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:55,365 INFO L225 Difference]: With dead ends: 49984 [2025-01-09 03:53:55,366 INFO L226 Difference]: Without dead ends: 33737 [2025-01-09 03:53:55,415 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 03:53:55,416 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 118 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1342 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 03:53:55,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1342 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:55,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2025-01-09 03:53:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 33729. [2025-01-09 03:53:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33729 states, 27954 states have (on average 1.6451312871145454) internal successors, (45988), 27962 states have internal predecessors, (45988), 5742 states have call successors, (5742), 30 states have call predecessors, (5742), 32 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2025-01-09 03:53:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33729 states to 33729 states and 58083 transitions. [2025-01-09 03:53:57,048 INFO L78 Accepts]: Start accepts. Automaton has 33729 states and 58083 transitions. Word has length 165 [2025-01-09 03:53:57,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:57,049 INFO L471 AbstractCegarLoop]: Abstraction has 33729 states and 58083 transitions. [2025-01-09 03:53:57,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 03:53:57,049 INFO L276 IsEmpty]: Start isEmpty. Operand 33729 states and 58083 transitions. [2025-01-09 03:53:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-01-09 03:53:57,153 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:57,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:57,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 03:53:57,154 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:57,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:57,154 INFO L85 PathProgramCache]: Analyzing trace with hash 913495983, now seen corresponding path program 1 times [2025-01-09 03:53:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:57,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994385994] [2025-01-09 03:53:57,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:57,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-01-09 03:53:57,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-01-09 03:53:57,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:57,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:53:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:57,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994385994] [2025-01-09 03:53:57,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994385994] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:57,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:57,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:57,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727265754] [2025-01-09 03:53:57,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:57,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:57,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:57,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:57,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:57,256 INFO L87 Difference]: Start difference. First operand 33729 states and 58083 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 03:53:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:58,958 INFO L93 Difference]: Finished difference Result 92021 states and 158927 transitions. [2025-01-09 03:53:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:58,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 166 [2025-01-09 03:53:58,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:59,373 INFO L225 Difference]: With dead ends: 92021 [2025-01-09 03:53:59,374 INFO L226 Difference]: Without dead ends: 61835 [2025-01-09 03:53:59,504 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 03:53:59,505 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 116 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1352 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 03:53:59,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1352 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61835 states. [2025-01-09 03:54:02,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61835 to 61827. [2025-01-09 03:54:02,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61827 states, 51539 states have (on average 1.640893304099808) internal successors, (84570), 51547 states have internal predecessors, (84570), 10255 states have call successors, (10255), 30 states have call predecessors, (10255), 32 states have return successors, (11398), 10251 states have call predecessors, (11398), 10252 states have call successors, (11398) [2025-01-09 03:54:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61827 states to 61827 states and 106223 transitions. [2025-01-09 03:54:02,830 INFO L78 Accepts]: Start accepts. Automaton has 61827 states and 106223 transitions. Word has length 166 [2025-01-09 03:54:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:54:02,831 INFO L471 AbstractCegarLoop]: Abstraction has 61827 states and 106223 transitions. [2025-01-09 03:54:02,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 03:54:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 61827 states and 106223 transitions. [2025-01-09 03:54:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-01-09 03:54:03,475 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:54:03,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:54:03,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 03:54:03,476 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:54:03,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:54:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2050602654, now seen corresponding path program 1 times [2025-01-09 03:54:03,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:54:03,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380005654] [2025-01-09 03:54:03,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:54:03,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:54:03,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-01-09 03:54:03,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-01-09 03:54:03,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:54:03,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:54:03,696 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:54:03,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:54:03,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380005654] [2025-01-09 03:54:03,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380005654] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:54:03,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:54:03,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:54:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819197662] [2025-01-09 03:54:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:54:03,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:54:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:54:03,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:54:03,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:54:03,701 INFO L87 Difference]: Start difference. First operand 61827 states and 106223 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 03:54:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:54:05,764 INFO L93 Difference]: Finished difference Result 115878 states and 199473 transitions. [2025-01-09 03:54:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:54:05,765 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 167 [2025-01-09 03:54:05,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:54:06,486 INFO L225 Difference]: With dead ends: 115878 [2025-01-09 03:54:06,486 INFO L226 Difference]: Without dead ends: 115620 [2025-01-09 03:54:06,547 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 03:54:06,548 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 111 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:54:06,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1356 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:54:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115620 states. [2025-01-09 03:54:09,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115620 to 115612. [2025-01-09 03:54:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115612 states, 96956 states have (on average 1.6355150790049093) internal successors, (158573), 96964 states have internal predecessors, (158573), 18623 states have call successors, (18623), 30 states have call predecessors, (18623), 32 states have return successors, (20812), 18619 states have call predecessors, (20812), 18620 states have call successors, (20812) [2025-01-09 03:54:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115612 states to 115612 states and 198008 transitions. [2025-01-09 03:54:10,519 INFO L78 Accepts]: Start accepts. Automaton has 115612 states and 198008 transitions. Word has length 167 [2025-01-09 03:54:10,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:54:10,519 INFO L471 AbstractCegarLoop]: Abstraction has 115612 states and 198008 transitions. [2025-01-09 03:54:10,520 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 03:54:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 115612 states and 198008 transitions. [2025-01-09 03:54:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:54:10,717 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:54:10,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:54:10,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-09 03:54:10,718 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:54:10,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:54:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1550215118, now seen corresponding path program 1 times [2025-01-09 03:54:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:54:10,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443738562] [2025-01-09 03:54:10,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:54:10,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:54:10,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:54:10,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:54:10,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:54:10,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:54:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-01-09 03:54:11,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:54:11,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443738562] [2025-01-09 03:54:11,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443738562] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:54:11,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065080750] [2025-01-09 03:54:11,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:54:11,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:54:11,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:54:11,668 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 03:54:11,670 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 03:54:11,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:54:12,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:54:12,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:54:12,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:54:12,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 1317 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:54:12,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:54:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:54:12,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:54:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-09 03:54:12,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065080750] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:54:12,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:54:12,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2025-01-09 03:54:12,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269050077] [2025-01-09 03:54:12,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:54:12,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-09 03:54:12,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:54:12,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-09 03:54:12,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2025-01-09 03:54:12,730 INFO L87 Difference]: Start difference. First operand 115612 states and 198008 transitions. Second operand has 28 states, 26 states have (on average 9.884615384615385) internal successors, (257), 24 states have internal predecessors, (257), 9 states have call successors, (55), 8 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47)