./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_spec27_productSimulator.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 fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:43:38,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:43:38,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:43:38,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:43:38,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:43:38,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:43:38,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:43:38,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:43:38,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:43:38,944 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:43:38,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:43:38,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:43:38,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:43:38,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:43:38,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:43:38,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:43:38,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:43:38,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:43:38,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:43:38,947 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 -> fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 [2025-02-05 15:43:39,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:43:39,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:43:39,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:43:39,189 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:43:39,190 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:43:39,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2025-02-05 15:43:40,509 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/344654fd4/013720df49d14101a641ba113a5d8061/FLAGf69a09e12 [2025-02-05 15:43:40,984 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:43:40,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2025-02-05 15:43:41,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/344654fd4/013720df49d14101a641ba113a5d8061/FLAGf69a09e12 [2025-02-05 15:43:41,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/344654fd4/013720df49d14101a641ba113a5d8061 [2025-02-05 15:43:41,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:43:41,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:43:41,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:43:41,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:43:41,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:43:41,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a26705f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41, skipping insertion in model container [2025-02-05 15:43:41,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:43:41,304 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_spec27_productSimulator.cil.c[11237,11250] [2025-02-05 15:43:41,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:43:41,551 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:43:41,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2025-02-05 15:43:41,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2025-02-05 15:43:41,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [423] [2025-02-05 15:43:41,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [441] [2025-02-05 15:43:41,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [561] [2025-02-05 15:43:41,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1641] [2025-02-05 15:43:41,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [1918] [2025-02-05 15:43:41,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1952] [2025-02-05 15:43:41,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2362] [2025-02-05 15:43:41,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2922] [2025-02-05 15:43:41,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [3271] [2025-02-05 15:43:41,597 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_spec27_productSimulator.cil.c[11237,11250] [2025-02-05 15:43:41,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:43:41,730 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:43:41,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41 WrapperNode [2025-02-05 15:43:41,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:43:41,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:43:41,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:43:41,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:43:41,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,828 INFO L138 Inliner]: procedures = 151, calls = 264, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1306 [2025-02-05 15:43:41,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:43:41,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:43:41,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:43:41,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:43:41,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,873 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]. [2025-02-05 15:43:41,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:43:41,904 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:43:41,904 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:43:41,904 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:43:41,904 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (1/1) ... [2025-02-05 15:43:41,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:43:41,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:41,936 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) [2025-02-05 15:43:41,942 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 [2025-02-05 15:43:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2025-02-05 15:43:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2025-02-05 15:43:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2025-02-05 15:43:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2025-02-05 15:43:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2025-02-05 15:43:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2025-02-05 15:43:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2025-02-05 15:43:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2025-02-05 15:43:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2025-02-05 15:43:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2025-02-05 15:43:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2025-02-05 15:43:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2025-02-05 15:43:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2025-02-05 15:43:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2025-02-05 15:43:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2025-02-05 15:43:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2025-02-05 15:43:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-02-05 15:43:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-02-05 15:43:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2025-02-05 15:43:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2025-02-05 15:43:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-02-05 15:43:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-02-05 15:43:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-02-05 15:43:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-02-05 15:43:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-02-05 15:43:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-02-05 15:43:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2025-02-05 15:43:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2025-02-05 15:43:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2025-02-05 15:43:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2025-02-05 15:43:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2025-02-05 15:43:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2025-02-05 15:43:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-02-05 15:43:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-02-05 15:43:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2025-02-05 15:43:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2025-02-05 15:43:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2025-02-05 15:43:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:43:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:43:42,148 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:43:42,149 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:43:42,174 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3410: #res := ~retValue_acc~40; [2025-02-05 15:43:42,187 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2269: #res := ~retValue_acc~31; [2025-02-05 15:43:42,205 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2806: #res := ~retValue_acc~38; [2025-02-05 15:43:42,228 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1183: #res := ~retValue_acc~15; [2025-02-05 15:43:42,316 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: #res := ~retValue_acc~9; [2025-02-05 15:43:42,365 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2006-1: getEmailId_#res#1 := getEmailId_~retValue_acc~24#1; [2025-02-05 15:43:42,410 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2232: #res := ~retValue_acc~30; [2025-02-05 15:43:42,450 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2080: #res := ~retValue_acc~26; [2025-02-05 15:43:42,520 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3448: #res#1 := ~retValue_acc~42#1; [2025-02-05 15:43:42,520 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3430-1: isReadable__role__Encrypt_#res#1 := isReadable__role__Encrypt_~retValue_acc~41#1; [2025-02-05 15:43:42,611 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2343: #res := ~retValue_acc~33; [2025-02-05 15:43:42,648 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1275: #res#1 := ~retValue_acc~17#1; [2025-02-05 15:43:42,648 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1230-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~16#1; [2025-02-05 15:43:42,740 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1499: #res := ~retValue_acc~20; [2025-02-05 15:43:42,756 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3472-1: createEmail_#res#1 := createEmail_~retValue_acc~44#1; [2025-02-05 15:43:42,768 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2195: #res := ~retValue_acc~29; [2025-02-05 15:43:42,815 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1618-1: getClientId_#res#1 := getClientId_~retValue_acc~22#1; [2025-02-05 15:43:42,864 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1571-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~21#1; [2025-02-05 15:43:42,875 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2306: #res := ~retValue_acc~32; [2025-02-05 15:43:42,898 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L463: #res := ~retValue_acc~4; [2025-02-05 15:43:42,916 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: #res := ~retValue_acc~13; [2025-02-05 15:43:42,932 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1136-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~14#1; [2025-02-05 15:43:43,142 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2763-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~35#1; [2025-02-05 15:43:43,143 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2781-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~37#1; [2025-02-05 15:43:43,143 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1445-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~19#1; [2025-02-05 15:43:43,143 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2025-02-05 15:43:43,143 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2772-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~36#1; [2025-02-05 15:43:43,143 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1338-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~18#1; [2025-02-05 15:43:43,148 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2043: #res := ~retValue_acc~25; [2025-02-05 15:43:43,348 INFO L? ?]: Removed 625 outVars from TransFormulas that were not future-live. [2025-02-05 15:43:43,348 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:43:43,378 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:43:43,378 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:43:43,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:43:43 BoogieIcfgContainer [2025-02-05 15:43:43,378 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:43:43,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:43:43,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:43:43,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:43:43,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:43:41" (1/3) ... [2025-02-05 15:43:43,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217ff9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:43:43, skipping insertion in model container [2025-02-05 15:43:43,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:43:41" (2/3) ... [2025-02-05 15:43:43,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217ff9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:43:43, skipping insertion in model container [2025-02-05 15:43:43,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:43:43" (3/3) ... [2025-02-05 15:43:43,398 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2025-02-05 15:43:43,417 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:43:43,422 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_productSimulator.cil.c that has 45 procedures, 607 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 15:43:43,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:43:43,504 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;@7cc8ccf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:43:43,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:43:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 607 states, 449 states have (on average 1.512249443207127) internal successors, (679), 469 states have internal predecessors, (679), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2025-02-05 15:43:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:43:43,531 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:43,532 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:43,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:43,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash 618584970, now seen corresponding path program 1 times [2025-02-05 15:43:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:43,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581151939] [2025-02-05 15:43:43,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:43,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:43,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:43:43,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:43:43,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:43,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-05 15:43:43,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:43,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581151939] [2025-02-05 15:43:43,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581151939] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:43,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:43,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 15:43:43,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492654979] [2025-02-05 15:43:43,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:43,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 15:43:43,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:43,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 15:43:43,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 15:43:43,961 INFO L87 Difference]: Start difference. First operand has 607 states, 449 states have (on average 1.512249443207127) internal successors, (679), 469 states have internal predecessors, (679), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-05 15:43:44,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:44,010 INFO L93 Difference]: Finished difference Result 946 states and 1395 transitions. [2025-02-05 15:43:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 15:43:44,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2025-02-05 15:43:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:44,025 INFO L225 Difference]: With dead ends: 946 [2025-02-05 15:43:44,025 INFO L226 Difference]: Without dead ends: 600 [2025-02-05 15:43:44,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 15:43:44,036 INFO L435 NwaCegarLoop]: 900 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:44,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:44,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2025-02-05 15:43:44,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2025-02-05 15:43:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 443 states have (on average 1.510158013544018) internal successors, (669), 462 states have internal predecessors, (669), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2025-02-05 15:43:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 892 transitions. [2025-02-05 15:43:44,124 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 892 transitions. Word has length 158 [2025-02-05 15:43:44,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:44,124 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 892 transitions. [2025-02-05 15:43:44,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-05 15:43:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 892 transitions. [2025-02-05 15:43:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-05 15:43:44,133 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:44,133 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:44,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 15:43:44,133 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:44,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:44,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1148814221, now seen corresponding path program 1 times [2025-02-05 15:43:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:44,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105866714] [2025-02-05 15:43:44,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:44,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:44,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-05 15:43:44,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-05 15:43:44,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:44,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-05 15:43:44,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:44,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105866714] [2025-02-05 15:43:44,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105866714] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:44,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:44,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 15:43:44,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811173357] [2025-02-05 15:43:44,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:44,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:43:44,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:44,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:43:44,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:43:44,419 INFO L87 Difference]: Start difference. First operand 600 states and 892 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-05 15:43:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:44,507 INFO L93 Difference]: Finished difference Result 1164 states and 1728 transitions. [2025-02-05 15:43:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:43:44,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2025-02-05 15:43:44,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:44,515 INFO L225 Difference]: With dead ends: 1164 [2025-02-05 15:43:44,516 INFO L226 Difference]: Without dead ends: 600 [2025-02-05 15:43:44,517 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 [2025-02-05 15:43:44,518 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 0 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:44,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3548 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:44,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2025-02-05 15:43:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2025-02-05 15:43:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 443 states have (on average 1.4943566591422122) internal successors, (662), 462 states have internal predecessors, (662), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2025-02-05 15:43:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 885 transitions. [2025-02-05 15:43:44,551 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 885 transitions. Word has length 159 [2025-02-05 15:43:44,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:44,551 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 885 transitions. [2025-02-05 15:43:44,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-05 15:43:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 885 transitions. [2025-02-05 15:43:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-05 15:43:44,554 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:44,554 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:44,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 15:43:44,554 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:44,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash 622582667, now seen corresponding path program 1 times [2025-02-05 15:43:44,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:44,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418390648] [2025-02-05 15:43:44,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:44,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-05 15:43:44,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-05 15:43:44,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:44,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-05 15:43:44,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:44,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418390648] [2025-02-05 15:43:44,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418390648] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:44,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:44,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:44,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507641408] [2025-02-05 15:43:44,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:44,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:44,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:44,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:44,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:44,777 INFO L87 Difference]: Start difference. First operand 600 states and 885 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-05 15:43:44,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:44,837 INFO L93 Difference]: Finished difference Result 1168 states and 1736 transitions. [2025-02-05 15:43:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:44,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 164 [2025-02-05 15:43:44,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:44,846 INFO L225 Difference]: With dead ends: 1168 [2025-02-05 15:43:44,846 INFO L226 Difference]: Without dead ends: 601 [2025-02-05 15:43:44,848 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 [2025-02-05 15:43:44,849 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 847 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:44,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 900 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:44,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2025-02-05 15:43:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2025-02-05 15:43:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 445 states have (on average 1.4853932584269662) internal successors, (661), 462 states have internal predecessors, (661), 110 states have call successors, (110), 45 states have call predecessors, (110), 45 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2025-02-05 15:43:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 880 transitions. [2025-02-05 15:43:44,877 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 880 transitions. Word has length 164 [2025-02-05 15:43:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:44,878 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 880 transitions. [2025-02-05 15:43:44,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-05 15:43:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 880 transitions. [2025-02-05 15:43:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-05 15:43:44,881 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:44,881 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:44,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 15:43:44,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:44,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:44,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1254742411, now seen corresponding path program 1 times [2025-02-05 15:43:44,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:44,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860481044] [2025-02-05 15:43:44,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:44,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:44,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-05 15:43:44,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-05 15:43:44,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:44,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-05 15:43:45,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:45,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860481044] [2025-02-05 15:43:45,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860481044] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:45,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:45,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:45,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926559292] [2025-02-05 15:43:45,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:45,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:45,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:45,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:45,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:45,027 INFO L87 Difference]: Start difference. First operand 601 states and 880 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-05 15:43:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:45,124 INFO L93 Difference]: Finished difference Result 1715 states and 2547 transitions. [2025-02-05 15:43:45,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:45,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 185 [2025-02-05 15:43:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:45,135 INFO L225 Difference]: With dead ends: 1715 [2025-02-05 15:43:45,135 INFO L226 Difference]: Without dead ends: 1148 [2025-02-05 15:43:45,137 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 [2025-02-05 15:43:45,138 INFO L435 NwaCegarLoop]: 897 mSDtfsCounter, 834 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:45,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1741 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2025-02-05 15:43:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1146. [2025-02-05 15:43:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 851 states have (on average 1.4923619271445359) internal successors, (1270), 881 states have internal predecessors, (1270), 205 states have call successors, (205), 89 states have call predecessors, (205), 89 states have return successors, (216), 202 states have call predecessors, (216), 203 states have call successors, (216) [2025-02-05 15:43:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1691 transitions. [2025-02-05 15:43:45,220 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1691 transitions. Word has length 185 [2025-02-05 15:43:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:45,220 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1691 transitions. [2025-02-05 15:43:45,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-02-05 15:43:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1691 transitions. [2025-02-05 15:43:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-02-05 15:43:45,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:45,227 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:45,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 15:43:45,227 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:45,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash 2081937694, now seen corresponding path program 1 times [2025-02-05 15:43:45,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:45,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348490795] [2025-02-05 15:43:45,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:45,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:45,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-02-05 15:43:45,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-02-05 15:43:45,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:45,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-05 15:43:45,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348490795] [2025-02-05 15:43:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348490795] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:45,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:45,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:45,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549771879] [2025-02-05 15:43:45,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:45,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:45,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:45,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:45,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:45,332 INFO L87 Difference]: Start difference. First operand 1146 states and 1691 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-05 15:43:45,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:45,400 INFO L93 Difference]: Finished difference Result 1148 states and 1692 transitions. [2025-02-05 15:43:45,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2025-02-05 15:43:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:45,407 INFO L225 Difference]: With dead ends: 1148 [2025-02-05 15:43:45,407 INFO L226 Difference]: Without dead ends: 602 [2025-02-05 15:43:45,409 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 [2025-02-05 15:43:45,409 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 827 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:45,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 903 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:45,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2025-02-05 15:43:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2025-02-05 15:43:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 447 states have (on average 1.4742729306487696) internal successors, (659), 462 states have internal predecessors, (659), 108 states have call successors, (108), 46 states have call predecessors, (108), 46 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2025-02-05 15:43:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 874 transitions. [2025-02-05 15:43:45,439 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 874 transitions. Word has length 179 [2025-02-05 15:43:45,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:45,440 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 874 transitions. [2025-02-05 15:43:45,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-02-05 15:43:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 874 transitions. [2025-02-05 15:43:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-02-05 15:43:45,443 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:45,443 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:45,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 15:43:45,444 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:45,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1442037398, now seen corresponding path program 1 times [2025-02-05 15:43:45,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:45,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889151965] [2025-02-05 15:43:45,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:45,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:45,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-02-05 15:43:45,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-02-05 15:43:45,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:45,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-02-05 15:43:45,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:45,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889151965] [2025-02-05 15:43:45,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889151965] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:45,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:45,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:45,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568501643] [2025-02-05 15:43:45,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:45,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:45,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:45,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:45,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:45,552 INFO L87 Difference]: Start difference. First operand 602 states and 874 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-02-05 15:43:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:45,609 INFO L93 Difference]: Finished difference Result 1158 states and 1688 transitions. [2025-02-05 15:43:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2025-02-05 15:43:45,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:45,614 INFO L225 Difference]: With dead ends: 1158 [2025-02-05 15:43:45,614 INFO L226 Difference]: Without dead ends: 605 [2025-02-05 15:43:45,616 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 [2025-02-05 15:43:45,617 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 809 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:45,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 888 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:45,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2025-02-05 15:43:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 599. [2025-02-05 15:43:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 447 states have (on average 1.4496644295302012) internal successors, (648), 457 states have internal predecessors, (648), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2025-02-05 15:43:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 857 transitions. [2025-02-05 15:43:45,650 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 857 transitions. Word has length 195 [2025-02-05 15:43:45,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:45,650 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 857 transitions. [2025-02-05 15:43:45,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-02-05 15:43:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 857 transitions. [2025-02-05 15:43:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-02-05 15:43:45,653 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:45,653 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:45,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 15:43:45,654 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:45,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:45,654 INFO L85 PathProgramCache]: Analyzing trace with hash 709422820, now seen corresponding path program 1 times [2025-02-05 15:43:45,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:45,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106878734] [2025-02-05 15:43:45,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:45,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-02-05 15:43:45,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-02-05 15:43:45,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:45,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-05 15:43:46,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106878734] [2025-02-05 15:43:46,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106878734] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220750260] [2025-02-05 15:43:46,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:46,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:46,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:46,003 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) [2025-02-05 15:43:46,005 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 [2025-02-05 15:43:46,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-02-05 15:43:46,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-02-05 15:43:46,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:46,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:46,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 15:43:46,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:46,475 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-05 15:43:46,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:43:46,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220750260] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:46,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:43:46,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:43:46,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41489774] [2025-02-05 15:43:46,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:46,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:46,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:46,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:46,478 INFO L87 Difference]: Start difference. First operand 599 states and 857 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-05 15:43:46,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:46,513 INFO L93 Difference]: Finished difference Result 930 states and 1313 transitions. [2025-02-05 15:43:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:46,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 206 [2025-02-05 15:43:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:46,517 INFO L225 Difference]: With dead ends: 930 [2025-02-05 15:43:46,518 INFO L226 Difference]: Without dead ends: 601 [2025-02-05 15:43:46,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:46,519 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 0 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:46,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1702 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:46,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2025-02-05 15:43:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2025-02-05 15:43:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 449 states have (on average 1.447661469933185) internal successors, (650), 459 states have internal predecessors, (650), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2025-02-05 15:43:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 859 transitions. [2025-02-05 15:43:46,547 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 859 transitions. Word has length 206 [2025-02-05 15:43:46,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:46,548 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 859 transitions. [2025-02-05 15:43:46,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-05 15:43:46,548 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 859 transitions. [2025-02-05 15:43:46,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2025-02-05 15:43:46,550 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:46,551 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:46,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-05 15:43:46,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:46,755 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:46,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:46,756 INFO L85 PathProgramCache]: Analyzing trace with hash 857719371, now seen corresponding path program 1 times [2025-02-05 15:43:46,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:46,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664110173] [2025-02-05 15:43:46,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:46,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:46,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 213 statements into 1 equivalence classes. [2025-02-05 15:43:46,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 213 of 213 statements. [2025-02-05 15:43:46,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:46,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-05 15:43:47,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:47,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664110173] [2025-02-05 15:43:47,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664110173] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:47,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477332245] [2025-02-05 15:43:47,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:47,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:47,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:47,106 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) [2025-02-05 15:43:47,107 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 [2025-02-05 15:43:47,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 213 statements into 1 equivalence classes. [2025-02-05 15:43:47,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 213 of 213 statements. [2025-02-05 15:43:47,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:47,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:47,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 1595 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:43:47,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-05 15:43:47,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:43:47,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477332245] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:47,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:43:47,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:43:47,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029685400] [2025-02-05 15:43:47,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:47,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:47,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:47,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:47,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:47,508 INFO L87 Difference]: Start difference. First operand 601 states and 859 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-05 15:43:47,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:47,549 INFO L93 Difference]: Finished difference Result 1218 states and 1776 transitions. [2025-02-05 15:43:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:47,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 213 [2025-02-05 15:43:47,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:47,554 INFO L225 Difference]: With dead ends: 1218 [2025-02-05 15:43:47,554 INFO L226 Difference]: Without dead ends: 698 [2025-02-05 15:43:47,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:47,556 INFO L435 NwaCegarLoop]: 862 mSDtfsCounter, 165 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1665 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 [2025-02-05 15:43:47,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1665 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2025-02-05 15:43:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 690. [2025-02-05 15:43:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 524 states have (on average 1.463740458015267) internal successors, (767), 534 states have internal predecessors, (767), 119 states have call successors, (119), 46 states have call predecessors, (119), 46 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2025-02-05 15:43:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1004 transitions. [2025-02-05 15:43:47,606 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1004 transitions. Word has length 213 [2025-02-05 15:43:47,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:47,606 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1004 transitions. [2025-02-05 15:43:47,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-05 15:43:47,607 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1004 transitions. [2025-02-05 15:43:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-02-05 15:43:47,611 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:47,611 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:47,619 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 [2025-02-05 15:43:47,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:47,813 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:47,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1945368212, now seen corresponding path program 1 times [2025-02-05 15:43:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158329321] [2025-02-05 15:43:47,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:47,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-02-05 15:43:47,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-02-05 15:43:47,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:47,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-05 15:43:48,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:48,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158329321] [2025-02-05 15:43:48,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158329321] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:48,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408948344] [2025-02-05 15:43:48,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:48,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:48,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:48,066 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) [2025-02-05 15:43:48,067 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 [2025-02-05 15:43:48,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-02-05 15:43:48,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-02-05 15:43:48,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:48,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:48,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:43:48,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-05 15:43:48,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:43:48,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408948344] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:48,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:43:48,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:43:48,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972365821] [2025-02-05 15:43:48,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:48,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:48,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:48,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:48,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:48,800 INFO L87 Difference]: Start difference. First operand 690 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-02-05 15:43:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:48,866 INFO L93 Difference]: Finished difference Result 1887 states and 2812 transitions. [2025-02-05 15:43:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:48,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 214 [2025-02-05 15:43:48,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:48,873 INFO L225 Difference]: With dead ends: 1887 [2025-02-05 15:43:48,873 INFO L226 Difference]: Without dead ends: 1278 [2025-02-05 15:43:48,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:48,876 INFO L435 NwaCegarLoop]: 1150 mSDtfsCounter, 687 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:48,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1982 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2025-02-05 15:43:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1276. [2025-02-05 15:43:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 973 states have (on average 1.4799588900308325) internal successors, (1440), 991 states have internal predecessors, (1440), 216 states have call successors, (216), 86 states have call predecessors, (216), 86 states have return successors, (228), 212 states have call predecessors, (228), 214 states have call successors, (228) [2025-02-05 15:43:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1884 transitions. [2025-02-05 15:43:48,928 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1884 transitions. Word has length 214 [2025-02-05 15:43:48,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:48,928 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1884 transitions. [2025-02-05 15:43:48,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-02-05 15:43:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1884 transitions. [2025-02-05 15:43:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-02-05 15:43:48,933 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:48,933 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:48,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-05 15:43:49,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:49,137 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:49,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:49,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1951903316, now seen corresponding path program 1 times [2025-02-05 15:43:49,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:49,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600425592] [2025-02-05 15:43:49,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:49,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:49,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-02-05 15:43:49,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-02-05 15:43:49,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:49,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-05 15:43:49,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:49,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600425592] [2025-02-05 15:43:49,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600425592] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:49,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575467365] [2025-02-05 15:43:49,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:49,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:49,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:49,530 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) [2025-02-05 15:43:49,531 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 [2025-02-05 15:43:49,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-02-05 15:43:49,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-02-05 15:43:49,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:49,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:49,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-05 15:43:49,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-02-05 15:43:49,931 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:43:49,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575467365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:49,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:43:49,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-02-05 15:43:49,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672181520] [2025-02-05 15:43:49,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:49,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:43:49,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:49,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:43:49,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-05 15:43:49,933 INFO L87 Difference]: Start difference. First operand 1276 states and 1884 transitions. Second operand has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:50,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:50,106 INFO L93 Difference]: Finished difference Result 2493 states and 3701 transitions. [2025-02-05 15:43:50,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:43:50,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 214 [2025-02-05 15:43:50,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:50,114 INFO L225 Difference]: With dead ends: 2493 [2025-02-05 15:43:50,114 INFO L226 Difference]: Without dead ends: 1278 [2025-02-05 15:43:50,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:43:50,119 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 4 mSDsluCounter, 5035 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5877 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:50,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5877 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:43:50,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2025-02-05 15:43:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2025-02-05 15:43:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 974 states have (on average 1.4794661190965093) internal successors, (1441), 993 states have internal predecessors, (1441), 216 states have call successors, (216), 86 states have call predecessors, (216), 87 states have return successors, (230), 212 states have call predecessors, (230), 214 states have call successors, (230) [2025-02-05 15:43:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1887 transitions. [2025-02-05 15:43:50,191 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1887 transitions. Word has length 214 [2025-02-05 15:43:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:50,191 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1887 transitions. [2025-02-05 15:43:50,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1887 transitions. [2025-02-05 15:43:50,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-02-05 15:43:50,197 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:50,197 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:50,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-05 15:43:50,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-05 15:43:50,401 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:50,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:50,402 INFO L85 PathProgramCache]: Analyzing trace with hash -26297931, now seen corresponding path program 1 times [2025-02-05 15:43:50,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:50,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287815113] [2025-02-05 15:43:50,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:50,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:50,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-05 15:43:50,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-05 15:43:50,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:50,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-05 15:43:50,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:50,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287815113] [2025-02-05 15:43:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287815113] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:50,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57365080] [2025-02-05 15:43:50,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:50,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:50,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:50,573 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) [2025-02-05 15:43:50,575 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 [2025-02-05 15:43:50,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-05 15:43:50,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-05 15:43:50,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:50,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:50,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:43:50,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:51,076 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:43:51,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57365080] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:51,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:43:51,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-02-05 15:43:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981989382] [2025-02-05 15:43:51,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:51,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:51,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:51,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:43:51,078 INFO L87 Difference]: Start difference. First operand 1278 states and 1887 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-02-05 15:43:51,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:51,161 INFO L93 Difference]: Finished difference Result 3114 states and 4608 transitions. [2025-02-05 15:43:51,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:51,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 222 [2025-02-05 15:43:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:51,174 INFO L225 Difference]: With dead ends: 3114 [2025-02-05 15:43:51,174 INFO L226 Difference]: Without dead ends: 2488 [2025-02-05 15:43:51,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:43:51,178 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 719 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:51,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1689 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2025-02-05 15:43:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2486. [2025-02-05 15:43:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 1907 states have (on average 1.4845306764551651) internal successors, (2831), 1939 states have internal predecessors, (2831), 408 states have call successors, (408), 168 states have call predecessors, (408), 170 states have return successors, (461), 400 states have call predecessors, (461), 404 states have call successors, (461) [2025-02-05 15:43:51,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3700 transitions. [2025-02-05 15:43:51,268 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3700 transitions. Word has length 222 [2025-02-05 15:43:51,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:51,269 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 3700 transitions. [2025-02-05 15:43:51,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-02-05 15:43:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3700 transitions. [2025-02-05 15:43:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2025-02-05 15:43:51,277 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:51,277 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:51,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-05 15:43:51,481 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,SelfDestructingSolverStorable10 [2025-02-05 15:43:51,481 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:51,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 538758033, now seen corresponding path program 1 times [2025-02-05 15:43:51,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:51,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389952965] [2025-02-05 15:43:51,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:51,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:51,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-02-05 15:43:51,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-02-05 15:43:51,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:51,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-02-05 15:43:51,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:51,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389952965] [2025-02-05 15:43:51,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389952965] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:51,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692439500] [2025-02-05 15:43:51,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:51,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:51,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:51,658 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) [2025-02-05 15:43:51,659 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 [2025-02-05 15:43:51,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-02-05 15:43:51,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-02-05 15:43:51,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:51,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:51,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-05 15:43:51,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:52,018 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-02-05 15:43:52,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:43:52,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692439500] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:52,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:43:52,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2025-02-05 15:43:52,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014707081] [2025-02-05 15:43:52,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:52,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:43:52,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:52,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:43:52,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:43:52,021 INFO L87 Difference]: Start difference. First operand 2486 states and 3700 transitions. Second operand has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-02-05 15:43:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:52,137 INFO L93 Difference]: Finished difference Result 4888 states and 7312 transitions. [2025-02-05 15:43:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:43:52,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 215 [2025-02-05 15:43:52,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:52,151 INFO L225 Difference]: With dead ends: 4888 [2025-02-05 15:43:52,151 INFO L226 Difference]: Without dead ends: 2494 [2025-02-05 15:43:52,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:43:52,158 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 2 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:52,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4193 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2025-02-05 15:43:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2490. [2025-02-05 15:43:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 1909 states have (on average 1.4840230487166055) internal successors, (2833), 1943 states have internal predecessors, (2833), 408 states have call successors, (408), 168 states have call predecessors, (408), 172 states have return successors, (471), 400 states have call predecessors, (471), 404 states have call successors, (471) [2025-02-05 15:43:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 3712 transitions. [2025-02-05 15:43:52,301 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 3712 transitions. Word has length 215 [2025-02-05 15:43:52,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:52,301 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 3712 transitions. [2025-02-05 15:43:52,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-02-05 15:43:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 3712 transitions. [2025-02-05 15:43:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2025-02-05 15:43:52,311 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:52,311 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:52,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-05 15:43:52,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-02-05 15:43:52,515 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:52,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash -564831568, now seen corresponding path program 1 times [2025-02-05 15:43:52,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:52,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577526952] [2025-02-05 15:43:52,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:52,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:52,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 216 statements into 1 equivalence classes. [2025-02-05 15:43:52,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 216 of 216 statements. [2025-02-05 15:43:52,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:52,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:52,704 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-05 15:43:52,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:52,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577526952] [2025-02-05 15:43:52,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577526952] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:52,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:52,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 15:43:52,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368373018] [2025-02-05 15:43:52,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:52,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:43:52,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:52,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:43:52,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:43:52,706 INFO L87 Difference]: Start difference. First operand 2490 states and 3712 transitions. Second operand has 8 states, 6 states have (on average 21.333333333333332) internal successors, (128), 8 states have internal predecessors, (128), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:52,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:52,874 INFO L93 Difference]: Finished difference Result 4860 states and 7278 transitions. [2025-02-05 15:43:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:43:52,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.333333333333332) internal successors, (128), 8 states have internal predecessors, (128), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 216 [2025-02-05 15:43:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:52,889 INFO L225 Difference]: With dead ends: 4860 [2025-02-05 15:43:52,890 INFO L226 Difference]: Without dead ends: 2490 [2025-02-05 15:43:52,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:52,898 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 4 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:52,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5884 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:52,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2025-02-05 15:43:53,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2490. [2025-02-05 15:43:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 1909 states have (on average 1.4840230487166055) internal successors, (2833), 1943 states have internal predecessors, (2833), 408 states have call successors, (408), 168 states have call predecessors, (408), 172 states have return successors, (469), 400 states have call predecessors, (469), 404 states have call successors, (469) [2025-02-05 15:43:53,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 3710 transitions. [2025-02-05 15:43:53,024 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 3710 transitions. Word has length 216 [2025-02-05 15:43:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:53,025 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 3710 transitions. [2025-02-05 15:43:53,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.333333333333332) internal successors, (128), 8 states have internal predecessors, (128), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 3710 transitions. [2025-02-05 15:43:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-02-05 15:43:53,033 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:53,033 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:53,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 15:43:53,033 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:53,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash 462302249, now seen corresponding path program 2 times [2025-02-05 15:43:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:53,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538755524] [2025-02-05 15:43:53,034 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-05 15:43:53,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:53,051 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 217 statements into 2 equivalence classes. [2025-02-05 15:43:53,056 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 105 of 217 statements. [2025-02-05 15:43:53,056 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-05 15:43:53,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2025-02-05 15:43:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:53,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538755524] [2025-02-05 15:43:53,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538755524] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:53,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:53,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 15:43:53,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110282359] [2025-02-05 15:43:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:53,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 15:43:53,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:53,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 15:43:53,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:43:53,168 INFO L87 Difference]: Start difference. First operand 2490 states and 3710 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-05 15:43:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:53,292 INFO L93 Difference]: Finished difference Result 3724 states and 5521 transitions. [2025-02-05 15:43:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:43:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) Word has length 217 [2025-02-05 15:43:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:53,309 INFO L225 Difference]: With dead ends: 3724 [2025-02-05 15:43:53,309 INFO L226 Difference]: Without dead ends: 2506 [2025-02-05 15:43:53,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:43:53,314 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 0 mSDsluCounter, 6763 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7610 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:53,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7610 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2025-02-05 15:43:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2506. [2025-02-05 15:43:53,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 1921 states have (on average 1.4809994794377928) internal successors, (2845), 1955 states have internal predecessors, (2845), 408 states have call successors, (408), 168 states have call predecessors, (408), 176 states have return successors, (477), 404 states have call predecessors, (477), 404 states have call successors, (477) [2025-02-05 15:43:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3730 transitions. [2025-02-05 15:43:53,410 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3730 transitions. Word has length 217 [2025-02-05 15:43:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:53,410 INFO L471 AbstractCegarLoop]: Abstraction has 2506 states and 3730 transitions. [2025-02-05 15:43:53,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 4 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-05 15:43:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3730 transitions. [2025-02-05 15:43:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2025-02-05 15:43:53,425 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:53,425 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:53,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 15:43:53,425 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:53,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:53,426 INFO L85 PathProgramCache]: Analyzing trace with hash 317994052, now seen corresponding path program 1 times [2025-02-05 15:43:53,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:53,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514880429] [2025-02-05 15:43:53,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:53,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:53,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-02-05 15:43:53,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-02-05 15:43:53,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:53,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-02-05 15:43:53,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:53,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514880429] [2025-02-05 15:43:53,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514880429] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:53,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:53,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 15:43:53,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076063797] [2025-02-05 15:43:53,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:53,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:43:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:53,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:43:53,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:43:53,640 INFO L87 Difference]: Start difference. First operand 2506 states and 3730 transitions. Second operand has 8 states, 6 states have (on average 22.0) internal successors, (132), 8 states have internal predecessors, (132), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:53,794 INFO L93 Difference]: Finished difference Result 4896 states and 7324 transitions. [2025-02-05 15:43:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:43:53,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.0) internal successors, (132), 8 states have internal predecessors, (132), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 220 [2025-02-05 15:43:53,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:53,805 INFO L225 Difference]: With dead ends: 4896 [2025-02-05 15:43:53,805 INFO L226 Difference]: Without dead ends: 2510 [2025-02-05 15:43:53,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:53,812 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 3 mSDsluCounter, 5046 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:53,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5890 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2025-02-05 15:43:53,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2510. [2025-02-05 15:43:53,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 1923 states have (on average 1.4804992199687987) internal successors, (2847), 1959 states have internal predecessors, (2847), 408 states have call successors, (408), 168 states have call predecessors, (408), 178 states have return successors, (481), 404 states have call predecessors, (481), 404 states have call successors, (481) [2025-02-05 15:43:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3736 transitions. [2025-02-05 15:43:53,896 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3736 transitions. Word has length 220 [2025-02-05 15:43:53,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:53,896 INFO L471 AbstractCegarLoop]: Abstraction has 2510 states and 3736 transitions. [2025-02-05 15:43:53,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.0) internal successors, (132), 8 states have internal predecessors, (132), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3736 transitions. [2025-02-05 15:43:53,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-02-05 15:43:53,903 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:53,903 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:53,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 15:43:53,904 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:53,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2067274752, now seen corresponding path program 1 times [2025-02-05 15:43:53,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:53,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972787174] [2025-02-05 15:43:53,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:53,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:53,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-02-05 15:43:53,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-02-05 15:43:53,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:53,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-02-05 15:43:54,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:54,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972787174] [2025-02-05 15:43:54,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972787174] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:54,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:54,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 15:43:54,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107207356] [2025-02-05 15:43:54,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:54,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 15:43:54,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:54,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 15:43:54,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:54,056 INFO L87 Difference]: Start difference. First operand 2510 states and 3736 transitions. Second operand has 9 states, 7 states have (on average 19.428571428571427) internal successors, (136), 8 states have internal predecessors, (136), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:54,262 INFO L93 Difference]: Finished difference Result 4894 states and 7320 transitions. [2025-02-05 15:43:54,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:43:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 19.428571428571427) internal successors, (136), 8 states have internal predecessors, (136), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 221 [2025-02-05 15:43:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:54,274 INFO L225 Difference]: With dead ends: 4894 [2025-02-05 15:43:54,274 INFO L226 Difference]: Without dead ends: 2514 [2025-02-05 15:43:54,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:43:54,280 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 7 mSDsluCounter, 5822 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6658 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:54,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6658 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:43:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2514 states. [2025-02-05 15:43:54,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2514 to 2510. [2025-02-05 15:43:54,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 1923 states have (on average 1.4804992199687987) internal successors, (2847), 1959 states have internal predecessors, (2847), 408 states have call successors, (408), 168 states have call predecessors, (408), 178 states have return successors, (479), 404 states have call predecessors, (479), 404 states have call successors, (479) [2025-02-05 15:43:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3734 transitions. [2025-02-05 15:43:54,367 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3734 transitions. Word has length 221 [2025-02-05 15:43:54,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:54,369 INFO L471 AbstractCegarLoop]: Abstraction has 2510 states and 3734 transitions. [2025-02-05 15:43:54,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 19.428571428571427) internal successors, (136), 8 states have internal predecessors, (136), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3734 transitions. [2025-02-05 15:43:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-02-05 15:43:54,376 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:54,376 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:54,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-05 15:43:54,376 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:54,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash -783633069, now seen corresponding path program 2 times [2025-02-05 15:43:54,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751586487] [2025-02-05 15:43:54,377 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-05 15:43:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:54,395 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 222 statements into 2 equivalence classes. [2025-02-05 15:43:54,401 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 110 of 222 statements. [2025-02-05 15:43:54,401 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-05 15:43:54,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-02-05 15:43:54,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:54,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751586487] [2025-02-05 15:43:54,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751586487] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:54,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:54,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:43:54,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813753483] [2025-02-05 15:43:54,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:54,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:43:54,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:54,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:43:54,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:43:54,432 INFO L87 Difference]: Start difference. First operand 2510 states and 3734 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 4 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:54,938 INFO L93 Difference]: Finished difference Result 6089 states and 9201 transitions. [2025-02-05 15:43:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:43:54,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 4 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 222 [2025-02-05 15:43:54,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:54,960 INFO L225 Difference]: With dead ends: 6089 [2025-02-05 15:43:54,960 INFO L226 Difference]: Without dead ends: 3615 [2025-02-05 15:43:54,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:43:54,970 INFO L435 NwaCegarLoop]: 1563 mSDtfsCounter, 1477 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:54,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 2788 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 15:43:54,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2025-02-05 15:43:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 3613. [2025-02-05 15:43:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3613 states, 2790 states have (on average 1.4795698924731182) internal successors, (4128), 2829 states have internal predecessors, (4128), 570 states have call successors, (570), 243 states have call predecessors, (570), 252 states have return successors, (645), 558 states have call predecessors, (645), 564 states have call successors, (645) [2025-02-05 15:43:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3613 states to 3613 states and 5343 transitions. [2025-02-05 15:43:55,173 INFO L78 Accepts]: Start accepts. Automaton has 3613 states and 5343 transitions. Word has length 222 [2025-02-05 15:43:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:55,174 INFO L471 AbstractCegarLoop]: Abstraction has 3613 states and 5343 transitions. [2025-02-05 15:43:55,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 4 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-02-05 15:43:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5343 transitions. [2025-02-05 15:43:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-02-05 15:43:55,184 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:55,185 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:55,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-05 15:43:55,185 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:55,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:55,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1455764898, now seen corresponding path program 1 times [2025-02-05 15:43:55,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:55,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125440467] [2025-02-05 15:43:55,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:55,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:55,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-02-05 15:43:55,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-02-05 15:43:55,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:55,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-02-05 15:43:55,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:55,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125440467] [2025-02-05 15:43:55,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125440467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:55,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:55,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 15:43:55,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458554873] [2025-02-05 15:43:55,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:55,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 15:43:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:55,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 15:43:55,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:43:55,370 INFO L87 Difference]: Start difference. First operand 3613 states and 5343 transitions. Second operand has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-05 15:43:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:55,583 INFO L93 Difference]: Finished difference Result 7058 states and 10504 transitions. [2025-02-05 15:43:55,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:43:55,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 226 [2025-02-05 15:43:55,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:55,606 INFO L225 Difference]: With dead ends: 7058 [2025-02-05 15:43:55,606 INFO L226 Difference]: Without dead ends: 3625 [2025-02-05 15:43:55,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:43:55,616 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 4 mSDsluCounter, 5836 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6674 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:55,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6674 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:43:55,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2025-02-05 15:43:55,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 3619. [2025-02-05 15:43:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 2793 states have (on average 1.4790547798066596) internal successors, (4131), 2835 states have internal predecessors, (4131), 570 states have call successors, (570), 243 states have call predecessors, (570), 255 states have return successors, (660), 558 states have call predecessors, (660), 564 states have call successors, (660) [2025-02-05 15:43:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 5361 transitions. [2025-02-05 15:43:55,774 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 5361 transitions. Word has length 226 [2025-02-05 15:43:55,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:55,775 INFO L471 AbstractCegarLoop]: Abstraction has 3619 states and 5361 transitions. [2025-02-05 15:43:55,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-05 15:43:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5361 transitions. [2025-02-05 15:43:55,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2025-02-05 15:43:55,783 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:55,783 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:55,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-05 15:43:55,784 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:55,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:55,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1401072716, now seen corresponding path program 1 times [2025-02-05 15:43:55,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:55,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031340644] [2025-02-05 15:43:55,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:55,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:55,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 227 statements into 1 equivalence classes. [2025-02-05 15:43:55,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 227 of 227 statements. [2025-02-05 15:43:55,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:55,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:55,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:55,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031340644] [2025-02-05 15:43:55,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031340644] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:43:55,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913272661] [2025-02-05 15:43:55,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:55,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:55,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:43:55,900 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:43:55,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-05 15:43:56,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 227 statements into 1 equivalence classes. [2025-02-05 15:43:56,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 227 of 227 statements. [2025-02-05 15:43:56,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:56,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:56,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:43:56,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:43:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:56,247 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 15:43:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:56,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913272661] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 15:43:56,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 15:43:56,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-05 15:43:56,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571147270] [2025-02-05 15:43:56,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 15:43:56,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:43:56,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:56,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:43:56,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:43:56,372 INFO L87 Difference]: Start difference. First operand 3619 states and 5361 transitions. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2025-02-05 15:43:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:56,605 INFO L93 Difference]: Finished difference Result 8069 states and 12198 transitions. [2025-02-05 15:43:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:43:56,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 227 [2025-02-05 15:43:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:56,632 INFO L225 Difference]: With dead ends: 8069 [2025-02-05 15:43:56,632 INFO L226 Difference]: Without dead ends: 6307 [2025-02-05 15:43:56,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:43:56,640 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 934 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:43:56,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 3084 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:43:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2025-02-05 15:43:56,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6169. [2025-02-05 15:43:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6169 states, 4962 states have (on average 1.5199516324062878) internal successors, (7542), 5004 states have internal predecessors, (7542), 951 states have call successors, (951), 243 states have call predecessors, (951), 255 states have return successors, (1071), 939 states have call predecessors, (1071), 945 states have call successors, (1071) [2025-02-05 15:43:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6169 states to 6169 states and 9564 transitions. [2025-02-05 15:43:56,890 INFO L78 Accepts]: Start accepts. Automaton has 6169 states and 9564 transitions. Word has length 227 [2025-02-05 15:43:56,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:56,891 INFO L471 AbstractCegarLoop]: Abstraction has 6169 states and 9564 transitions. [2025-02-05 15:43:56,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2025-02-05 15:43:56,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6169 states and 9564 transitions. [2025-02-05 15:43:56,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-02-05 15:43:56,908 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:56,908 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:56,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-05 15:43:57,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:43:57,109 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:57,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:57,110 INFO L85 PathProgramCache]: Analyzing trace with hash 789414647, now seen corresponding path program 1 times [2025-02-05 15:43:57,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:57,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419454140] [2025-02-05 15:43:57,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:57,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:57,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-02-05 15:43:57,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-02-05 15:43:57,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:57,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:57,173 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:57,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:57,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419454140] [2025-02-05 15:43:57,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419454140] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:57,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:57,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:57,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403213247] [2025-02-05 15:43:57,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:57,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:57,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:57,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:57,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:57,174 INFO L87 Difference]: Start difference. First operand 6169 states and 9564 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:43:57,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:57,326 INFO L93 Difference]: Finished difference Result 14312 states and 22468 transitions. [2025-02-05 15:43:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:57,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 231 [2025-02-05 15:43:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:57,359 INFO L225 Difference]: With dead ends: 14312 [2025-02-05 15:43:57,359 INFO L226 Difference]: Without dead ends: 9082 [2025-02-05 15:43:57,377 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 [2025-02-05 15:43:57,379 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 163 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1705 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 [2025-02-05 15:43:57,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1705 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9082 states. [2025-02-05 15:43:57,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9082 to 9034. [2025-02-05 15:43:57,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 7362 states have (on average 1.5338223308883456) internal successors, (11292), 7404 states have internal predecessors, (11292), 1416 states have call successors, (1416), 243 states have call predecessors, (1416), 255 states have return successors, (1566), 1404 states have call predecessors, (1566), 1410 states have call successors, (1566) [2025-02-05 15:43:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 14274 transitions. [2025-02-05 15:43:57,735 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 14274 transitions. Word has length 231 [2025-02-05 15:43:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:57,735 INFO L471 AbstractCegarLoop]: Abstraction has 9034 states and 14274 transitions. [2025-02-05 15:43:57,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:43:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 14274 transitions. [2025-02-05 15:43:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2025-02-05 15:43:57,762 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:57,762 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:57,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-05 15:43:57,763 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:57,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1373500519, now seen corresponding path program 1 times [2025-02-05 15:43:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324635048] [2025-02-05 15:43:57,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:57,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 232 statements into 1 equivalence classes. [2025-02-05 15:43:57,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 232 of 232 statements. [2025-02-05 15:43:57,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:57,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:57,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:57,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324635048] [2025-02-05 15:43:57,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324635048] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:57,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:57,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:57,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337861478] [2025-02-05 15:43:57,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:57,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:57,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:57,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:57,832 INFO L87 Difference]: Start difference. First operand 9034 states and 14274 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:43:58,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:58,243 INFO L93 Difference]: Finished difference Result 21560 states and 34369 transitions. [2025-02-05 15:43:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:58,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 232 [2025-02-05 15:43:58,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:58,301 INFO L225 Difference]: With dead ends: 21560 [2025-02-05 15:43:58,302 INFO L226 Difference]: Without dead ends: 13258 [2025-02-05 15:43:58,328 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 [2025-02-05 15:43:58,330 INFO L435 NwaCegarLoop]: 854 mSDtfsCounter, 161 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1698 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 [2025-02-05 15:43:58,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1698 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13258 states. [2025-02-05 15:43:58,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13258 to 13210. [2025-02-05 15:43:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13210 states, 10911 states have (on average 1.5449546329392356) internal successors, (16857), 10953 states have internal predecessors, (16857), 2043 states have call successors, (2043), 243 states have call predecessors, (2043), 255 states have return successors, (2193), 2031 states have call predecessors, (2193), 2037 states have call successors, (2193) [2025-02-05 15:43:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13210 states to 13210 states and 21093 transitions. [2025-02-05 15:43:58,973 INFO L78 Accepts]: Start accepts. Automaton has 13210 states and 21093 transitions. Word has length 232 [2025-02-05 15:43:58,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:43:58,974 INFO L471 AbstractCegarLoop]: Abstraction has 13210 states and 21093 transitions. [2025-02-05 15:43:58,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:43:58,974 INFO L276 IsEmpty]: Start isEmpty. Operand 13210 states and 21093 transitions. [2025-02-05 15:43:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-02-05 15:43:59,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:43:59,017 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:43:59,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-05 15:43:59,018 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:43:59,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:43:59,018 INFO L85 PathProgramCache]: Analyzing trace with hash -601199722, now seen corresponding path program 1 times [2025-02-05 15:43:59,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:43:59,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316750251] [2025-02-05 15:43:59,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:43:59,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:43:59,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-02-05 15:43:59,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-02-05 15:43:59,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:43:59,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:43:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:43:59,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:43:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316750251] [2025-02-05 15:43:59,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316750251] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:43:59,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:43:59,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:43:59,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553324623] [2025-02-05 15:43:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:43:59,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:43:59,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:43:59,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:43:59,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:43:59,078 INFO L87 Difference]: Start difference. First operand 13210 states and 21093 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:43:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:43:59,424 INFO L93 Difference]: Finished difference Result 31328 states and 50443 transitions. [2025-02-05 15:43:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:43:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 233 [2025-02-05 15:43:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:43:59,492 INFO L225 Difference]: With dead ends: 31328 [2025-02-05 15:43:59,492 INFO L226 Difference]: Without dead ends: 19702 [2025-02-05 15:43:59,520 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 [2025-02-05 15:43:59,521 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 159 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1693 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 [2025-02-05 15:43:59,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1693 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:43:59,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19702 states. [2025-02-05 15:44:00,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19702 to 19654. [2025-02-05 15:44:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19654 states, 16497 states have (on average 1.5548281505728314) internal successors, (25650), 16539 states have internal predecessors, (25650), 2901 states have call successors, (2901), 243 states have call predecessors, (2901), 255 states have return successors, (3099), 2889 states have call predecessors, (3099), 2895 states have call successors, (3099) [2025-02-05 15:44:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19654 states to 19654 states and 31650 transitions. [2025-02-05 15:44:00,167 INFO L78 Accepts]: Start accepts. Automaton has 19654 states and 31650 transitions. Word has length 233 [2025-02-05 15:44:00,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:44:00,167 INFO L471 AbstractCegarLoop]: Abstraction has 19654 states and 31650 transitions. [2025-02-05 15:44:00,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:00,168 INFO L276 IsEmpty]: Start isEmpty. Operand 19654 states and 31650 transitions. [2025-02-05 15:44:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-02-05 15:44:00,219 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:44:00,219 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:44:00,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-05 15:44:00,220 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:44:00,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:44:00,220 INFO L85 PathProgramCache]: Analyzing trace with hash -828183590, now seen corresponding path program 1 times [2025-02-05 15:44:00,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:44:00,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206412421] [2025-02-05 15:44:00,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:44:00,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:44:00,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 234 statements into 1 equivalence classes. [2025-02-05 15:44:00,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 234 of 234 statements. [2025-02-05 15:44:00,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:44:00,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:44:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:44:00,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:44:00,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206412421] [2025-02-05 15:44:00,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206412421] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:44:00,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:44:00,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:44:00,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240314495] [2025-02-05 15:44:00,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:44:00,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:44:00,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:44:00,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:44:00,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:44:00,278 INFO L87 Difference]: Start difference. First operand 19654 states and 31650 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:44:00,856 INFO L93 Difference]: Finished difference Result 47129 states and 76522 transitions. [2025-02-05 15:44:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:44:00,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 234 [2025-02-05 15:44:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:44:00,954 INFO L225 Difference]: With dead ends: 47129 [2025-02-05 15:44:00,954 INFO L226 Difference]: Without dead ends: 30319 [2025-02-05 15:44:00,986 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 [2025-02-05 15:44:00,987 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 157 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1693 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 [2025-02-05 15:44:00,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1693 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:44:01,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30319 states. [2025-02-05 15:44:02,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30319 to 30271. [2025-02-05 15:44:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30271 states, 25791 states have (on average 1.5641502849831337) internal successors, (40341), 25833 states have internal predecessors, (40341), 4224 states have call successors, (4224), 243 states have call predecessors, (4224), 255 states have return successors, (4500), 4212 states have call predecessors, (4500), 4218 states have call successors, (4500) [2025-02-05 15:44:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30271 states to 30271 states and 49065 transitions. [2025-02-05 15:44:02,194 INFO L78 Accepts]: Start accepts. Automaton has 30271 states and 49065 transitions. Word has length 234 [2025-02-05 15:44:02,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:44:02,195 INFO L471 AbstractCegarLoop]: Abstraction has 30271 states and 49065 transitions. [2025-02-05 15:44:02,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 30271 states and 49065 transitions. [2025-02-05 15:44:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2025-02-05 15:44:02,292 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:44:02,292 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:44:02,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-05 15:44:02,292 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:44:02,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:44:02,293 INFO L85 PathProgramCache]: Analyzing trace with hash 189204181, now seen corresponding path program 1 times [2025-02-05 15:44:02,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:44:02,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121347759] [2025-02-05 15:44:02,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:44:02,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:44:02,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 235 statements into 1 equivalence classes. [2025-02-05 15:44:02,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 235 of 235 statements. [2025-02-05 15:44:02,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:44:02,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:44:02,370 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:44:02,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:44:02,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121347759] [2025-02-05 15:44:02,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121347759] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:44:02,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:44:02,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:44:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328928384] [2025-02-05 15:44:02,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:44:02,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:44:02,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:44:02,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:44:02,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:44:02,373 INFO L87 Difference]: Start difference. First operand 30271 states and 49065 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:44:03,551 INFO L93 Difference]: Finished difference Result 74195 states and 121003 transitions. [2025-02-05 15:44:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:44:03,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 235 [2025-02-05 15:44:03,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:44:03,755 INFO L225 Difference]: With dead ends: 74195 [2025-02-05 15:44:03,755 INFO L226 Difference]: Without dead ends: 48559 [2025-02-05 15:44:03,826 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 [2025-02-05 15:44:03,826 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 155 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1694 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 [2025-02-05 15:44:03,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1694 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:44:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48559 states. [2025-02-05 15:44:06,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48559 to 48511. [2025-02-05 15:44:06,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48511 states, 41298 states have (on average 1.562254830742409) internal successors, (64518), 41340 states have internal predecessors, (64518), 6957 states have call successors, (6957), 243 states have call predecessors, (6957), 255 states have return successors, (7365), 6945 states have call predecessors, (7365), 6951 states have call successors, (7365) [2025-02-05 15:44:06,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48511 states to 48511 states and 78840 transitions. [2025-02-05 15:44:06,221 INFO L78 Accepts]: Start accepts. Automaton has 48511 states and 78840 transitions. Word has length 235 [2025-02-05 15:44:06,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:44:06,221 INFO L471 AbstractCegarLoop]: Abstraction has 48511 states and 78840 transitions. [2025-02-05 15:44:06,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand 48511 states and 78840 transitions. [2025-02-05 15:44:06,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-02-05 15:44:06,372 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:44:06,372 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:44:06,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-05 15:44:06,372 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:44:06,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:44:06,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1994758299, now seen corresponding path program 1 times [2025-02-05 15:44:06,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:44:06,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347726640] [2025-02-05 15:44:06,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:44:06,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:44:06,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-02-05 15:44:06,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-02-05 15:44:06,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:44:06,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:44:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:44:06,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:44:06,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347726640] [2025-02-05 15:44:06,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347726640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:44:06,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:44:06,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:44:06,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902064330] [2025-02-05 15:44:06,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:44:06,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:44:06,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:44:06,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:44:06,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:44:06,440 INFO L87 Difference]: Start difference. First operand 48511 states and 78840 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:44:08,399 INFO L93 Difference]: Finished difference Result 123947 states and 203113 transitions. [2025-02-05 15:44:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:44:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 236 [2025-02-05 15:44:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:44:08,651 INFO L225 Difference]: With dead ends: 123947 [2025-02-05 15:44:08,651 INFO L226 Difference]: Without dead ends: 82174 [2025-02-05 15:44:08,738 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 [2025-02-05 15:44:08,738 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 153 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1696 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 [2025-02-05 15:44:08,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1696 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:44:08,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82174 states. [2025-02-05 15:44:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82174 to 82126. [2025-02-05 15:44:11,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82126 states, 70239 states have (on average 1.5690001281339427) internal successors, (110205), 70281 states have internal predecessors, (110205), 11631 states have call successors, (11631), 243 states have call predecessors, (11631), 255 states have return successors, (12273), 11619 states have call predecessors, (12273), 11625 states have call successors, (12273) [2025-02-05 15:44:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82126 states to 82126 states and 134109 transitions. [2025-02-05 15:44:12,200 INFO L78 Accepts]: Start accepts. Automaton has 82126 states and 134109 transitions. Word has length 236 [2025-02-05 15:44:12,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:44:12,200 INFO L471 AbstractCegarLoop]: Abstraction has 82126 states and 134109 transitions. [2025-02-05 15:44:12,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 82126 states and 134109 transitions. [2025-02-05 15:44:12,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-02-05 15:44:12,431 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:44:12,432 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:44:12,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-05 15:44:12,432 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:44:12,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:44:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash 35157428, now seen corresponding path program 1 times [2025-02-05 15:44:12,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:44:12,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172714131] [2025-02-05 15:44:12,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:44:12,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:44:12,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-02-05 15:44:12,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-02-05 15:44:12,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:44:12,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:44:12,501 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:44:12,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:44:12,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172714131] [2025-02-05 15:44:12,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172714131] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:44:12,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:44:12,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:44:12,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404854579] [2025-02-05 15:44:12,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:44:12,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:44:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:44:12,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:44:12,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:44:12,503 INFO L87 Difference]: Start difference. First operand 82126 states and 134109 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:15,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:44:15,719 INFO L93 Difference]: Finished difference Result 202271 states and 328633 transitions. [2025-02-05 15:44:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:44:15,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 237 [2025-02-05 15:44:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:44:16,273 INFO L225 Difference]: With dead ends: 202271 [2025-02-05 15:44:16,273 INFO L226 Difference]: Without dead ends: 131674 [2025-02-05 15:44:16,420 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 [2025-02-05 15:44:16,423 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 151 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1675 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 [2025-02-05 15:44:16,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1675 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:44:16,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131674 states. [2025-02-05 15:44:20,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131674 to 131626. [2025-02-05 15:44:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131626 states, 112782 states have (on average 1.5407777836888865) internal successors, (173772), 112824 states have internal predecessors, (173772), 18588 states have call successors, (18588), 243 states have call predecessors, (18588), 255 states have return successors, (19662), 18576 states have call predecessors, (19662), 18582 states have call successors, (19662) [2025-02-05 15:44:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131626 states to 131626 states and 212022 transitions. [2025-02-05 15:44:21,461 INFO L78 Accepts]: Start accepts. Automaton has 131626 states and 212022 transitions. Word has length 237 [2025-02-05 15:44:21,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:44:21,465 INFO L471 AbstractCegarLoop]: Abstraction has 131626 states and 212022 transitions. [2025-02-05 15:44:21,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:44:21,465 INFO L276 IsEmpty]: Start isEmpty. Operand 131626 states and 212022 transitions. [2025-02-05 15:44:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-02-05 15:44:21,911 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:44:21,911 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:44:21,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-05 15:44:21,912 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:44:21,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:44:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash -415787172, now seen corresponding path program 1 times [2025-02-05 15:44:21,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:44:21,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392486042] [2025-02-05 15:44:21,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:44:21,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:44:21,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-02-05 15:44:21,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-02-05 15:44:21,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:44:21,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:44:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-02-05 15:44:21,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:44:21,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392486042] [2025-02-05 15:44:21,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392486042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:44:21,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:44:21,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 15:44:21,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551540810] [2025-02-05 15:44:21,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:44:21,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:44:21,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:44:21,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:44:21,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 15:44:21,980 INFO L87 Difference]: Start difference. First operand 131626 states and 212022 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)