./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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-?-8fc3dc6-m [2025-03-16 18:41:23,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 18:41:23,662 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 18:41:23,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 18:41:23,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 18:41:23,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 18:41:23,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 18:41:23,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 18:41:23,694 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 18:41:23,694 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 18:41:23,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 18:41:23,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 18:41:23,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 18:41:23,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 18:41:23,695 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 18:41:23,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 18:41:23,696 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 18:41:23,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 18:41:23,697 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 18:41:23,697 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 18:41:23,697 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 18:41:23,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 18:41:23,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 18:41:23,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 18:41:23,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 18:41:23,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 18:41:23,698 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/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 [2025-03-16 18:41:23,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 18:41:23,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 18:41:23,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 18:41:23,941 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 18:41:23,941 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 18:41:23,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2025-03-16 18:41:25,154 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09280f1d9/bcd4f85f80bc402aaf23c5da5ec2b1b5/FLAGeb26f720f [2025-03-16 18:41:25,454 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 18:41:25,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2025-03-16 18:41:25,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09280f1d9/bcd4f85f80bc402aaf23c5da5ec2b1b5/FLAGeb26f720f [2025-03-16 18:41:25,736 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09280f1d9/bcd4f85f80bc402aaf23c5da5ec2b1b5 [2025-03-16 18:41:25,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 18:41:25,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 18:41:25,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 18:41:25,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 18:41:25,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 18:41:25,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:41:25" (1/1) ... [2025-03-16 18:41:25,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45605c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:25, skipping insertion in model container [2025-03-16 18:41:25,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:41:25" (1/1) ... [2025-03-16 18:41:25,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 18:41:26,024 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c[11237,11250] [2025-03-16 18:41:26,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 18:41:26,277 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 18:41:26,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2025-03-16 18:41:26,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2025-03-16 18:41:26,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [423] [2025-03-16 18:41:26,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [441] [2025-03-16 18:41:26,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [561] [2025-03-16 18:41:26,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1641] [2025-03-16 18:41:26,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [1918] [2025-03-16 18:41:26,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1952] [2025-03-16 18:41:26,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2362] [2025-03-16 18:41:26,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2922] [2025-03-16 18:41:26,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [3271] [2025-03-16 18:41:26,304 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c[11237,11250] [2025-03-16 18:41:26,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 18:41:26,386 INFO L204 MainTranslator]: Completed translation [2025-03-16 18:41:26,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26 WrapperNode [2025-03-16 18:41:26,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 18:41:26,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 18:41:26,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 18:41:26,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 18:41:26,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,460 INFO L138 Inliner]: procedures = 151, calls = 264, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1306 [2025-03-16 18:41:26,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 18:41:26,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 18:41:26,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 18:41:26,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 18:41:26,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,506 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]. [2025-03-16 18:41:26,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,525 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 18:41:26,539 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 18:41:26,539 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 18:41:26,540 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 18:41:26,540 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (1/1) ... [2025-03-16 18:41:26,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 18:41:26,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:26,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 18:41:26,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 18:41:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2025-03-16 18:41:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2025-03-16 18:41:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2025-03-16 18:41:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2025-03-16 18:41:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2025-03-16 18:41:26,600 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2025-03-16 18:41:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-03-16 18:41:26,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-03-16 18:41:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2025-03-16 18:41:26,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2025-03-16 18:41:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 18:41:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-03-16 18:41:26,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-03-16 18:41:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-03-16 18:41:26,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-03-16 18:41:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-03-16 18:41:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2025-03-16 18:41:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2025-03-16 18:41:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2025-03-16 18:41:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2025-03-16 18:41:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 18:41:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 18:41:26,803 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 18:41:26,806 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 18:41:26,886 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3410: #res := ~retValue_acc~40; [2025-03-16 18:41:26,897 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2269: #res := ~retValue_acc~31; [2025-03-16 18:41:26,912 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2806: #res := ~retValue_acc~38; [2025-03-16 18:41:26,926 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1183: #res := ~retValue_acc~15; [2025-03-16 18:41:26,981 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: #res := ~retValue_acc~9; [2025-03-16 18:41:27,019 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2006-1: getEmailId_#res#1 := getEmailId_~retValue_acc~24#1; [2025-03-16 18:41:27,053 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2232: #res := ~retValue_acc~30; [2025-03-16 18:41:27,095 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2080: #res := ~retValue_acc~26; [2025-03-16 18:41:27,143 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3448: #res#1 := ~retValue_acc~42#1; [2025-03-16 18:41:27,143 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3430-1: isReadable__role__Encrypt_#res#1 := isReadable__role__Encrypt_~retValue_acc~41#1; [2025-03-16 18:41:27,191 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2343: #res := ~retValue_acc~33; [2025-03-16 18:41:27,211 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1275: #res#1 := ~retValue_acc~17#1; [2025-03-16 18:41:27,211 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1230-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~16#1; [2025-03-16 18:41:27,254 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1499: #res := ~retValue_acc~20; [2025-03-16 18:41:27,262 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3472-1: createEmail_#res#1 := createEmail_~retValue_acc~44#1; [2025-03-16 18:41:27,267 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2195: #res := ~retValue_acc~29; [2025-03-16 18:41:27,302 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1618-1: getClientId_#res#1 := getClientId_~retValue_acc~22#1; [2025-03-16 18:41:27,325 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1571-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~21#1; [2025-03-16 18:41:27,330 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2306: #res := ~retValue_acc~32; [2025-03-16 18:41:27,353 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L463: #res := ~retValue_acc~4; [2025-03-16 18:41:27,375 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: #res := ~retValue_acc~13; [2025-03-16 18:41:27,392 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1136-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~14#1; [2025-03-16 18:41:27,638 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2763-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~35#1; [2025-03-16 18:41:27,639 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2781-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~37#1; [2025-03-16 18:41:27,639 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1445-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~19#1; [2025-03-16 18:41:27,639 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L558-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2025-03-16 18:41:27,639 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2772-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~36#1; [2025-03-16 18:41:27,640 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1338-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~18#1; [2025-03-16 18:41:27,644 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2043: #res := ~retValue_acc~25; [2025-03-16 18:41:27,809 INFO L? ?]: Removed 606 outVars from TransFormulas that were not future-live. [2025-03-16 18:41:27,809 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 18:41:27,833 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 18:41:27,837 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 18:41:27,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 06:41:27 BoogieIcfgContainer [2025-03-16 18:41:27,837 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 18:41:27,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 18:41:27,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 18:41:27,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 18:41:27,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 06:41:25" (1/3) ... [2025-03-16 18:41:27,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14776639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:41:27, skipping insertion in model container [2025-03-16 18:41:27,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:41:26" (2/3) ... [2025-03-16 18:41:27,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14776639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:41:27, skipping insertion in model container [2025-03-16 18:41:27,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 06:41:27" (3/3) ... [2025-03-16 18:41:27,848 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2025-03-16 18:41:27,860 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 18:41:27,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_productSimulator.cil.c that has 45 procedures, 590 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 18:41:27,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 18:41:27,936 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;@537a296b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 18:41:27,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 18:41:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 432 states have (on average 1.5324074074074074) internal successors, (662), 452 states have internal predecessors, (662), 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) [2025-03-16 18:41:27,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-16 18:41:27,956 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:27,956 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] [2025-03-16 18:41:27,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:27,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1391488939, now seen corresponding path program 1 times [2025-03-16 18:41:27,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:27,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530948839] [2025-03-16 18:41:27,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:27,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:28,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-16 18:41:28,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-16 18:41:28,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:28,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-16 18:41:28,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:28,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530948839] [2025-03-16 18:41:28,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530948839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:28,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:28,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 18:41:28,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577238582] [2025-03-16 18:41:28,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:28,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:41:28,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:28,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:41:28,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 18:41:28,581 INFO L87 Difference]: Start difference. First operand has 590 states, 432 states have (on average 1.5324074074074074) internal successors, (662), 452 states have internal predecessors, (662), 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 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2025-03-16 18:41:28,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:28,754 INFO L93 Difference]: Finished difference Result 1147 states and 1738 transitions. [2025-03-16 18:41:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:41:28,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 154 [2025-03-16 18:41:28,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:28,769 INFO L225 Difference]: With dead ends: 1147 [2025-03-16 18:41:28,770 INFO L226 Difference]: Without dead ends: 586 [2025-03-16 18:41:28,779 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 [2025-03-16 18:41:28,781 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 0 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 18:41:28,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3511 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:28,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2025-03-16 18:41:28,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2025-03-16 18:41:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 429 states have (on average 1.5104895104895104) internal successors, (648), 448 states have internal predecessors, (648), 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) [2025-03-16 18:41:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 871 transitions. [2025-03-16 18:41:28,858 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 871 transitions. Word has length 154 [2025-03-16 18:41:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:28,860 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 871 transitions. [2025-03-16 18:41:28,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2025-03-16 18:41:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 871 transitions. [2025-03-16 18:41:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-16 18:41:28,869 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:28,869 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] [2025-03-16 18:41:28,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 18:41:28,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:28,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:28,870 INFO L85 PathProgramCache]: Analyzing trace with hash -277369809, now seen corresponding path program 1 times [2025-03-16 18:41:28,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:28,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643646413] [2025-03-16 18:41:28,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:28,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-16 18:41:28,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-16 18:41:28,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:28,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-16 18:41:29,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:29,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643646413] [2025-03-16 18:41:29,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643646413] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:29,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:29,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:29,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393512561] [2025-03-16 18:41:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:29,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:29,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:29,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:29,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:29,095 INFO L87 Difference]: Start difference. First operand 586 states and 871 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2025-03-16 18:41:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:29,168 INFO L93 Difference]: Finished difference Result 1143 states and 1711 transitions. [2025-03-16 18:41:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:29,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 159 [2025-03-16 18:41:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:29,175 INFO L225 Difference]: With dead ends: 1143 [2025-03-16 18:41:29,176 INFO L226 Difference]: Without dead ends: 587 [2025-03-16 18:41:29,179 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 [2025-03-16 18:41:29,180 INFO L435 NwaCegarLoop]: 862 mSDtfsCounter, 836 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 884 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 [2025-03-16 18:41:29,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 884 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2025-03-16 18:41:29,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2025-03-16 18:41:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 431 states have (on average 1.5011600928074247) internal successors, (647), 448 states have internal predecessors, (647), 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) [2025-03-16 18:41:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 866 transitions. [2025-03-16 18:41:29,228 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 866 transitions. Word has length 159 [2025-03-16 18:41:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:29,230 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 866 transitions. [2025-03-16 18:41:29,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2025-03-16 18:41:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 866 transitions. [2025-03-16 18:41:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-16 18:41:29,236 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:29,236 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] [2025-03-16 18:41:29,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 18:41:29,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:29,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:29,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2068650219, now seen corresponding path program 1 times [2025-03-16 18:41:29,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:29,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065522693] [2025-03-16 18:41:29,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:29,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:29,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-03-16 18:41:29,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-03-16 18:41:29,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:29,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-16 18:41:29,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065522693] [2025-03-16 18:41:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065522693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:29,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:29,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:29,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789183757] [2025-03-16 18:41:29,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:29,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:29,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:29,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:29,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:29,399 INFO L87 Difference]: Start difference. First operand 587 states and 866 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2025-03-16 18:41:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:29,475 INFO L93 Difference]: Finished difference Result 1680 states and 2512 transitions. [2025-03-16 18:41:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 180 [2025-03-16 18:41:29,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:29,485 INFO L225 Difference]: With dead ends: 1680 [2025-03-16 18:41:29,486 INFO L226 Difference]: Without dead ends: 1124 [2025-03-16 18:41:29,488 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 [2025-03-16 18:41:29,490 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 822 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 1715 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 [2025-03-16 18:41:29,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 1715 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:29,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2025-03-16 18:41:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1122. [2025-03-16 18:41:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 827 states have (on average 1.5066505441354292) internal successors, (1246), 857 states have internal predecessors, (1246), 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) [2025-03-16 18:41:29,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1667 transitions. [2025-03-16 18:41:29,552 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1667 transitions. Word has length 180 [2025-03-16 18:41:29,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:29,553 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1667 transitions. [2025-03-16 18:41:29,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2025-03-16 18:41:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1667 transitions. [2025-03-16 18:41:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-03-16 18:41:29,559 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:29,559 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] [2025-03-16 18:41:29,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 18:41:29,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:29,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:29,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2142117988, now seen corresponding path program 1 times [2025-03-16 18:41:29,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:29,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785500184] [2025-03-16 18:41:29,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:29,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:29,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-03-16 18:41:29,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-03-16 18:41:29,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:29,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-16 18:41:29,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:29,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785500184] [2025-03-16 18:41:29,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785500184] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:29,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:29,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:29,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570226604] [2025-03-16 18:41:29,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:29,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:29,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:29,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:29,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:29,674 INFO L87 Difference]: Start difference. First operand 1122 states and 1667 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-03-16 18:41:29,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:29,712 INFO L93 Difference]: Finished difference Result 1124 states and 1668 transitions. [2025-03-16 18:41:29,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:29,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 174 [2025-03-16 18:41:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:29,716 INFO L225 Difference]: With dead ends: 1124 [2025-03-16 18:41:29,716 INFO L226 Difference]: Without dead ends: 588 [2025-03-16 18:41:29,718 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 [2025-03-16 18:41:29,718 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 816 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 886 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 [2025-03-16 18:41:29,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 886 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2025-03-16 18:41:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2025-03-16 18:41:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 433 states have (on average 1.489607390300231) internal successors, (645), 448 states have internal predecessors, (645), 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) [2025-03-16 18:41:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 860 transitions. [2025-03-16 18:41:29,742 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 860 transitions. Word has length 174 [2025-03-16 18:41:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:29,742 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 860 transitions. [2025-03-16 18:41:29,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-03-16 18:41:29,743 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 860 transitions. [2025-03-16 18:41:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-16 18:41:29,745 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:29,745 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] [2025-03-16 18:41:29,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 18:41:29,746 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:29,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1237682870, now seen corresponding path program 1 times [2025-03-16 18:41:29,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:29,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009686865] [2025-03-16 18:41:29,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:29,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:29,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-03-16 18:41:29,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-03-16 18:41:29,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:29,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-03-16 18:41:29,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:29,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009686865] [2025-03-16 18:41:29,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009686865] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:29,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:29,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:29,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196973940] [2025-03-16 18:41:29,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:29,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:29,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:29,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:29,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:29,855 INFO L87 Difference]: Start difference. First operand 588 states and 860 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (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) [2025-03-16 18:41:29,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:29,915 INFO L93 Difference]: Finished difference Result 1133 states and 1663 transitions. [2025-03-16 18:41:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:29,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (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 183 [2025-03-16 18:41:29,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:29,920 INFO L225 Difference]: With dead ends: 1133 [2025-03-16 18:41:29,921 INFO L226 Difference]: Without dead ends: 591 [2025-03-16 18:41:29,922 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 [2025-03-16 18:41:29,923 INFO L435 NwaCegarLoop]: 833 mSDtfsCounter, 798 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 871 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 [2025-03-16 18:41:29,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 871 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-03-16 18:41:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 585. [2025-03-16 18:41:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 433 states have (on average 1.464203233256351) internal successors, (634), 443 states have internal predecessors, (634), 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) [2025-03-16 18:41:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 843 transitions. [2025-03-16 18:41:29,955 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 843 transitions. Word has length 183 [2025-03-16 18:41:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:29,955 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 843 transitions. [2025-03-16 18:41:29,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (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) [2025-03-16 18:41:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 843 transitions. [2025-03-16 18:41:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2025-03-16 18:41:29,958 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:29,958 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 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] [2025-03-16 18:41:29,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 18:41:29,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:29,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash -891380724, now seen corresponding path program 1 times [2025-03-16 18:41:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:29,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418150332] [2025-03-16 18:41:29,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:29,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:29,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-16 18:41:29,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-16 18:41:29,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:29,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-16 18:41:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418150332] [2025-03-16 18:41:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418150332] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456737581] [2025-03-16 18:41:30,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:30,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:30,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:30,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:30,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 18:41:30,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-16 18:41:30,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-16 18:41:30,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:30,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:30,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-16 18:41:30,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-03-16 18:41:30,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:41:30,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456737581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:30,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:41:30,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-03-16 18:41:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146747419] [2025-03-16 18:41:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:30,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:30,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:30,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:30,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:30,693 INFO L87 Difference]: Start difference. First operand 585 states and 843 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-03-16 18:41:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:30,727 INFO L93 Difference]: Finished difference Result 909 states and 1292 transitions. [2025-03-16 18:41:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 208 [2025-03-16 18:41:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:30,732 INFO L225 Difference]: With dead ends: 909 [2025-03-16 18:41:30,733 INFO L226 Difference]: Without dead ends: 586 [2025-03-16 18:41:30,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:30,735 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 0 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1674 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 [2025-03-16 18:41:30,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1674 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:30,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2025-03-16 18:41:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2025-03-16 18:41:30,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 434 states have (on average 1.4631336405529953) internal successors, (635), 444 states have internal predecessors, (635), 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) [2025-03-16 18:41:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 844 transitions. [2025-03-16 18:41:30,769 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 844 transitions. Word has length 208 [2025-03-16 18:41:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:30,769 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 844 transitions. [2025-03-16 18:41:30,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-03-16 18:41:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 844 transitions. [2025-03-16 18:41:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-03-16 18:41:30,772 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:30,772 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, 1] [2025-03-16 18:41:30,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-16 18:41:30,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-16 18:41:30,977 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:30,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:30,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2147007236, now seen corresponding path program 1 times [2025-03-16 18:41:30,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:30,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30171750] [2025-03-16 18:41:30,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:30,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:31,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-03-16 18:41:31,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-03-16 18:41:31,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:31,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-03-16 18:41:31,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:31,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30171750] [2025-03-16 18:41:31,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30171750] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:31,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975306011] [2025-03-16 18:41:31,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:31,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:31,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:31,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:31,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-16 18:41:31,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-03-16 18:41:31,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-03-16 18:41:31,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:31,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:31,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:41:31,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-16 18:41:31,696 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:41:31,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975306011] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:31,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:41:31,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-03-16 18:41:31,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117734477] [2025-03-16 18:41:31,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:31,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:31,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:31,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:31,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:31,699 INFO L87 Difference]: Start difference. First operand 586 states and 844 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2025-03-16 18:41:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:31,738 INFO L93 Difference]: Finished difference Result 1190 states and 1748 transitions. [2025-03-16 18:41:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:31,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 207 [2025-03-16 18:41:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:31,743 INFO L225 Difference]: With dead ends: 1190 [2025-03-16 18:41:31,743 INFO L226 Difference]: Without dead ends: 680 [2025-03-16 18:41:31,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:31,745 INFO L435 NwaCegarLoop]: 848 mSDtfsCounter, 162 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1638 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 [2025-03-16 18:41:31,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1638 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2025-03-16 18:41:31,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 672. [2025-03-16 18:41:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 506 states have (on average 1.4802371541501975) internal successors, (749), 516 states have internal predecessors, (749), 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) [2025-03-16 18:41:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 986 transitions. [2025-03-16 18:41:31,782 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 986 transitions. Word has length 207 [2025-03-16 18:41:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:31,782 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 986 transitions. [2025-03-16 18:41:31,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2025-03-16 18:41:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 986 transitions. [2025-03-16 18:41:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2025-03-16 18:41:31,785 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:31,786 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, 1, 1] [2025-03-16 18:41:31,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-16 18:41:31,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-16 18:41:31,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:31,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:31,993 INFO L85 PathProgramCache]: Analyzing trace with hash 785442647, now seen corresponding path program 1 times [2025-03-16 18:41:31,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:31,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746691745] [2025-03-16 18:41:31,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:31,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:32,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-16 18:41:32,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-16 18:41:32,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:32,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-03-16 18:41:32,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:32,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746691745] [2025-03-16 18:41:32,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746691745] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:32,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846505305] [2025-03-16 18:41:32,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:32,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:32,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:32,261 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:32,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-16 18:41:32,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-16 18:41:32,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-16 18:41:32,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:32,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:32,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:41:32,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-16 18:41:32,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:41:32,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846505305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:32,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:41:32,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-03-16 18:41:32,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500906204] [2025-03-16 18:41:32,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:32,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:32,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:32,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:32,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:32,709 INFO L87 Difference]: Start difference. First operand 672 states and 986 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2025-03-16 18:41:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:32,792 INFO L93 Difference]: Finished difference Result 1845 states and 2770 transitions. [2025-03-16 18:41:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:32,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 208 [2025-03-16 18:41:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:32,799 INFO L225 Difference]: With dead ends: 1845 [2025-03-16 18:41:32,799 INFO L226 Difference]: Without dead ends: 1249 [2025-03-16 18:41:32,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:32,802 INFO L435 NwaCegarLoop]: 1132 mSDtfsCounter, 678 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1952 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 [2025-03-16 18:41:32,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1952 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2025-03-16 18:41:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1247. [2025-03-16 18:41:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 944 states have (on average 1.4947033898305084) internal successors, (1411), 962 states have internal predecessors, (1411), 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) [2025-03-16 18:41:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1855 transitions. [2025-03-16 18:41:32,876 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1855 transitions. Word has length 208 [2025-03-16 18:41:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:32,876 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1855 transitions. [2025-03-16 18:41:32,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2025-03-16 18:41:32,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1855 transitions. [2025-03-16 18:41:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2025-03-16 18:41:32,881 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:32,882 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, 1, 1] [2025-03-16 18:41:32,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-16 18:41:33,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:33,086 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:33,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash 791977751, now seen corresponding path program 1 times [2025-03-16 18:41:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:33,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960508151] [2025-03-16 18:41:33,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:33,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:33,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-16 18:41:33,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-16 18:41:33,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:33,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-03-16 18:41:33,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:33,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960508151] [2025-03-16 18:41:33,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960508151] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:33,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483670784] [2025-03-16 18:41:33,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:33,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:33,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:33,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:33,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-16 18:41:33,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-16 18:41:33,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-16 18:41:33,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:33,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:33,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-16 18:41:33,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-16 18:41:33,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:41:33,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483670784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:33,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:41:33,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-03-16 18:41:33,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228405662] [2025-03-16 18:41:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:33,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 18:41:33,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:33,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 18:41:33,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-16 18:41:33,747 INFO L87 Difference]: Start difference. First operand 1247 states and 1855 transitions. Second operand has 8 states, 6 states have (on average 20.833333333333332) internal successors, (125), 8 states have internal predecessors, (125), 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) [2025-03-16 18:41:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:33,907 INFO L93 Difference]: Finished difference Result 2438 states and 3646 transitions. [2025-03-16 18:41:33,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 18:41:33,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.833333333333332) internal successors, (125), 8 states have internal predecessors, (125), 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 208 [2025-03-16 18:41:33,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:33,915 INFO L225 Difference]: With dead ends: 2438 [2025-03-16 18:41:33,915 INFO L226 Difference]: Without dead ends: 1249 [2025-03-16 18:41:33,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-03-16 18:41:33,919 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 4 mSDsluCounter, 4951 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5779 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 [2025-03-16 18:41:33,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5779 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2025-03-16 18:41:33,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2025-03-16 18:41:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 945 states have (on average 1.4941798941798943) internal successors, (1412), 964 states have internal predecessors, (1412), 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) [2025-03-16 18:41:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1858 transitions. [2025-03-16 18:41:33,982 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1858 transitions. Word has length 208 [2025-03-16 18:41:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:33,983 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1858 transitions. [2025-03-16 18:41:33,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.833333333333332) internal successors, (125), 8 states have internal predecessors, (125), 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) [2025-03-16 18:41:33,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1858 transitions. [2025-03-16 18:41:33,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-16 18:41:33,988 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:33,988 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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] [2025-03-16 18:41:33,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-16 18:41:34,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:34,189 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:34,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2120762909, now seen corresponding path program 1 times [2025-03-16 18:41:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444054794] [2025-03-16 18:41:34,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:34,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:34,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-16 18:41:34,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-16 18:41:34,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:34,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-16 18:41:34,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:34,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444054794] [2025-03-16 18:41:34,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444054794] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:34,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839761402] [2025-03-16 18:41:34,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:34,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:34,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:34,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-16 18:41:34,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-16 18:41:34,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-16 18:41:34,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:34,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:34,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-16 18:41:34,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-16 18:41:34,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:41:34,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839761402] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:34,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:41:34,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2025-03-16 18:41:34,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650135633] [2025-03-16 18:41:34,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:34,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:41:34,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:34,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:41:34,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-16 18:41:34,760 INFO L87 Difference]: Start difference. First operand 1249 states and 1858 transitions. Second operand has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 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) [2025-03-16 18:41:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:34,860 INFO L93 Difference]: Finished difference Result 2441 states and 3654 transitions. [2025-03-16 18:41:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:41:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 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 209 [2025-03-16 18:41:34,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:34,869 INFO L225 Difference]: With dead ends: 2441 [2025-03-16 18:41:34,869 INFO L226 Difference]: Without dead ends: 1253 [2025-03-16 18:41:34,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-16 18:41:34,874 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 2 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4123 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 [2025-03-16 18:41:34,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4123 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:34,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2025-03-16 18:41:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1251. [2025-03-16 18:41:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 946 states have (on average 1.4936575052854122) internal successors, (1413), 966 states have internal predecessors, (1413), 216 states have call successors, (216), 86 states have call predecessors, (216), 88 states have return successors, (235), 212 states have call predecessors, (235), 214 states have call successors, (235) [2025-03-16 18:41:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1864 transitions. [2025-03-16 18:41:34,935 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1864 transitions. Word has length 209 [2025-03-16 18:41:34,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:34,935 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1864 transitions. [2025-03-16 18:41:34,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 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) [2025-03-16 18:41:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1864 transitions. [2025-03-16 18:41:34,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-03-16 18:41:34,942 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:34,942 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 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] [2025-03-16 18:41:34,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-16 18:41:35,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-16 18:41:35,143 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:35,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:35,143 INFO L85 PathProgramCache]: Analyzing trace with hash 17397552, now seen corresponding path program 1 times [2025-03-16 18:41:35,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:35,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941287851] [2025-03-16 18:41:35,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:35,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:35,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-03-16 18:41:35,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-03-16 18:41:35,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:35,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2025-03-16 18:41:35,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:35,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941287851] [2025-03-16 18:41:35,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941287851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:35,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:35,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 18:41:35,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25351964] [2025-03-16 18:41:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:35,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 18:41:35,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:35,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 18:41:35,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-16 18:41:35,369 INFO L87 Difference]: Start difference. First operand 1251 states and 1864 transitions. Second operand has 8 states, 6 states have (on average 20.833333333333332) internal successors, (125), 8 states have internal predecessors, (125), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-03-16 18:41:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:35,478 INFO L93 Difference]: Finished difference Result 2427 states and 3637 transitions. [2025-03-16 18:41:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 18:41:35,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.833333333333332) internal successors, (125), 8 states have internal predecessors, (125), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 217 [2025-03-16 18:41:35,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:35,486 INFO L225 Difference]: With dead ends: 2427 [2025-03-16 18:41:35,487 INFO L226 Difference]: Without dead ends: 1251 [2025-03-16 18:41:35,491 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 [2025-03-16 18:41:35,491 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 4 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5786 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 [2025-03-16 18:41:35,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5786 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2025-03-16 18:41:35,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1251. [2025-03-16 18:41:35,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 946 states have (on average 1.4936575052854122) internal successors, (1413), 966 states have internal predecessors, (1413), 216 states have call successors, (216), 86 states have call predecessors, (216), 88 states have return successors, (234), 212 states have call predecessors, (234), 214 states have call successors, (234) [2025-03-16 18:41:35,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1863 transitions. [2025-03-16 18:41:35,542 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1863 transitions. Word has length 217 [2025-03-16 18:41:35,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:35,543 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1863 transitions. [2025-03-16 18:41:35,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.833333333333332) internal successors, (125), 8 states have internal predecessors, (125), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-03-16 18:41:35,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1863 transitions. [2025-03-16 18:41:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-03-16 18:41:35,548 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:35,548 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:41:35,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 18:41:35,549 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:35,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash 561981782, now seen corresponding path program 2 times [2025-03-16 18:41:35,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:35,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212844162] [2025-03-16 18:41:35,550 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-16 18:41:35,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:35,575 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 218 statements into 2 equivalence classes. [2025-03-16 18:41:35,583 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 107 of 218 statements. [2025-03-16 18:41:35,583 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-16 18:41:35,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-16 18:41:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212844162] [2025-03-16 18:41:35,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212844162] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:35,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:35,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:35,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243659037] [2025-03-16 18:41:35,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:35,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:35,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:35,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:35,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:35,620 INFO L87 Difference]: Start difference. First operand 1251 states and 1863 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-03-16 18:41:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:35,696 INFO L93 Difference]: Finished difference Result 3051 states and 4551 transitions. [2025-03-16 18:41:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:35,697 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 218 [2025-03-16 18:41:35,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:35,712 INFO L225 Difference]: With dead ends: 3051 [2025-03-16 18:41:35,712 INFO L226 Difference]: Without dead ends: 2437 [2025-03-16 18:41:35,715 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 [2025-03-16 18:41:35,716 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 751 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1663 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 [2025-03-16 18:41:35,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1663 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:35,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2025-03-16 18:41:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2435. [2025-03-16 18:41:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 1854 states have (on average 1.4983818770226538) internal successors, (2778), 1888 states have internal predecessors, (2778), 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) [2025-03-16 18:41:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 3655 transitions. [2025-03-16 18:41:35,837 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 3655 transitions. Word has length 218 [2025-03-16 18:41:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:35,837 INFO L471 AbstractCegarLoop]: Abstraction has 2435 states and 3655 transitions. [2025-03-16 18:41:35,837 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-03-16 18:41:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 3655 transitions. [2025-03-16 18:41:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-16 18:41:35,846 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:35,846 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] [2025-03-16 18:41:35,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 18:41:35,847 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:35,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:35,847 INFO L85 PathProgramCache]: Analyzing trace with hash -784514390, now seen corresponding path program 1 times [2025-03-16 18:41:35,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:35,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914459538] [2025-03-16 18:41:35,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:35,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:35,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 211 statements into 1 equivalence classes. [2025-03-16 18:41:35,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 211 of 211 statements. [2025-03-16 18:41:35,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:35,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2025-03-16 18:41:36,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:36,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914459538] [2025-03-16 18:41:36,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914459538] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 18:41:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442985671] [2025-03-16 18:41:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:36,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 18:41:36,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:36,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 18:41:36,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-16 18:41:36,018 INFO L87 Difference]: Start difference. First operand 2435 states and 3655 transitions. Second operand has 8 states, 6 states have (on average 20.666666666666668) internal successors, (124), 8 states have internal predecessors, (124), 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) [2025-03-16 18:41:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:36,139 INFO L93 Difference]: Finished difference Result 4757 states and 7177 transitions. [2025-03-16 18:41:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 18:41:36,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.666666666666668) internal successors, (124), 8 states have internal predecessors, (124), 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 211 [2025-03-16 18:41:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:36,150 INFO L225 Difference]: With dead ends: 4757 [2025-03-16 18:41:36,150 INFO L226 Difference]: Without dead ends: 2439 [2025-03-16 18:41:36,156 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 [2025-03-16 18:41:36,157 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 3 mSDsluCounter, 4962 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5792 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 [2025-03-16 18:41:36,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5792 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2025-03-16 18:41:36,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2025-03-16 18:41:36,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1856 states have (on average 1.4978448275862069) internal successors, (2780), 1892 states have internal predecessors, (2780), 408 states have call successors, (408), 168 states have call predecessors, (408), 174 states have return successors, (473), 400 states have call predecessors, (473), 404 states have call successors, (473) [2025-03-16 18:41:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3661 transitions. [2025-03-16 18:41:36,239 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3661 transitions. Word has length 211 [2025-03-16 18:41:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:36,240 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3661 transitions. [2025-03-16 18:41:36,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.666666666666668) internal successors, (124), 8 states have internal predecessors, (124), 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) [2025-03-16 18:41:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3661 transitions. [2025-03-16 18:41:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2025-03-16 18:41:36,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:36,246 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] [2025-03-16 18:41:36,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 18:41:36,246 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:36,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:36,247 INFO L85 PathProgramCache]: Analyzing trace with hash -316319149, now seen corresponding path program 1 times [2025-03-16 18:41:36,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:36,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967066297] [2025-03-16 18:41:36,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:36,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:36,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-03-16 18:41:36,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-03-16 18:41:36,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:36,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-16 18:41:36,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:36,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967066297] [2025-03-16 18:41:36,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967066297] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:36,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:36,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-16 18:41:36,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992459122] [2025-03-16 18:41:36,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:36,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 18:41:36,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:36,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 18:41:36,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:36,426 INFO L87 Difference]: Start difference. First operand 2439 states and 3661 transitions. Second operand has 9 states, 7 states have (on average 18.285714285714285) internal successors, (128), 8 states have internal predecessors, (128), 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) [2025-03-16 18:41:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:36,616 INFO L93 Difference]: Finished difference Result 4755 states and 7173 transitions. [2025-03-16 18:41:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-16 18:41:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 18.285714285714285) internal successors, (128), 8 states have internal predecessors, (128), 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 212 [2025-03-16 18:41:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:36,628 INFO L225 Difference]: With dead ends: 4755 [2025-03-16 18:41:36,628 INFO L226 Difference]: Without dead ends: 2443 [2025-03-16 18:41:36,634 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 [2025-03-16 18:41:36,634 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 7 mSDsluCounter, 5724 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6546 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 [2025-03-16 18:41:36,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6546 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:41:36,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2025-03-16 18:41:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2439. [2025-03-16 18:41:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1856 states have (on average 1.4978448275862069) internal successors, (2780), 1892 states have internal predecessors, (2780), 408 states have call successors, (408), 168 states have call predecessors, (408), 174 states have return successors, (471), 400 states have call predecessors, (471), 404 states have call successors, (471) [2025-03-16 18:41:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3659 transitions. [2025-03-16 18:41:36,716 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3659 transitions. Word has length 212 [2025-03-16 18:41:36,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:36,716 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3659 transitions. [2025-03-16 18:41:36,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 18.285714285714285) internal successors, (128), 8 states have internal predecessors, (128), 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) [2025-03-16 18:41:36,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3659 transitions. [2025-03-16 18:41:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2025-03-16 18:41:36,723 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:36,723 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] [2025-03-16 18:41:36,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 18:41:36,723 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:36,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:36,723 INFO L85 PathProgramCache]: Analyzing trace with hash 217015562, now seen corresponding path program 2 times [2025-03-16 18:41:36,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:36,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801073479] [2025-03-16 18:41:36,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-16 18:41:36,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:36,741 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 213 statements into 2 equivalence classes. [2025-03-16 18:41:36,746 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 213 statements. [2025-03-16 18:41:36,746 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-16 18:41:36,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2025-03-16 18:41:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801073479] [2025-03-16 18:41:36,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801073479] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:36,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:36,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-16 18:41:36,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454470018] [2025-03-16 18:41:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:36,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-16 18:41:36,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:36,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-16 18:41:36,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:41:36,852 INFO L87 Difference]: Start difference. First operand 2439 states and 3659 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 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) [2025-03-16 18:41:36,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:36,983 INFO L93 Difference]: Finished difference Result 3649 states and 5446 transitions. [2025-03-16 18:41:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-16 18:41:36,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 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 213 [2025-03-16 18:41:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:36,994 INFO L225 Difference]: With dead ends: 3649 [2025-03-16 18:41:36,994 INFO L226 Difference]: Without dead ends: 2455 [2025-03-16 18:41:36,999 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 [2025-03-16 18:41:36,999 INFO L435 NwaCegarLoop]: 833 mSDtfsCounter, 0 mSDsluCounter, 6651 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7484 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 [2025-03-16 18:41:36,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7484 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2025-03-16 18:41:37,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2455. [2025-03-16 18:41:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 1868 states have (on average 1.4946466809421841) internal successors, (2792), 1904 states have internal predecessors, (2792), 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) [2025-03-16 18:41:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3679 transitions. [2025-03-16 18:41:37,094 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3679 transitions. Word has length 213 [2025-03-16 18:41:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:37,095 INFO L471 AbstractCegarLoop]: Abstraction has 2455 states and 3679 transitions. [2025-03-16 18:41:37,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 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) [2025-03-16 18:41:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3679 transitions. [2025-03-16 18:41:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2025-03-16 18:41:37,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:37,103 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] [2025-03-16 18:41:37,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-16 18:41:37,103 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:37,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2110375378, now seen corresponding path program 1 times [2025-03-16 18:41:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:37,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368799458] [2025-03-16 18:41:37,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:37,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 216 statements into 1 equivalence classes. [2025-03-16 18:41:37,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 216 of 216 statements. [2025-03-16 18:41:37,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:37,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-16 18:41:37,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:37,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368799458] [2025-03-16 18:41:37,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368799458] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:37,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:37,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-16 18:41:37,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674125401] [2025-03-16 18:41:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:37,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 18:41:37,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:37,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 18:41:37,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:41:37,248 INFO L87 Difference]: Start difference. First operand 2455 states and 3679 transitions. Second operand has 9 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 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) [2025-03-16 18:41:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:37,412 INFO L93 Difference]: Finished difference Result 4791 states and 7225 transitions. [2025-03-16 18:41:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-16 18:41:37,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 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 216 [2025-03-16 18:41:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:37,424 INFO L225 Difference]: With dead ends: 4791 [2025-03-16 18:41:37,424 INFO L226 Difference]: Without dead ends: 2463 [2025-03-16 18:41:37,430 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 [2025-03-16 18:41:37,431 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 4 mSDsluCounter, 5738 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6562 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 [2025-03-16 18:41:37,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6562 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:41:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2025-03-16 18:41:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2459. [2025-03-16 18:41:37,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 1870 states have (on average 1.4941176470588236) internal successors, (2794), 1908 states have internal predecessors, (2794), 408 states have call successors, (408), 168 states have call predecessors, (408), 180 states have return successors, (489), 404 states have call predecessors, (489), 404 states have call successors, (489) [2025-03-16 18:41:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3691 transitions. [2025-03-16 18:41:37,508 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3691 transitions. Word has length 216 [2025-03-16 18:41:37,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:37,508 INFO L471 AbstractCegarLoop]: Abstraction has 2459 states and 3691 transitions. [2025-03-16 18:41:37,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 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) [2025-03-16 18:41:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3691 transitions. [2025-03-16 18:41:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-03-16 18:41:37,514 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:37,514 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] [2025-03-16 18:41:37,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-16 18:41:37,515 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:37,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:37,515 INFO L85 PathProgramCache]: Analyzing trace with hash -154313752, now seen corresponding path program 1 times [2025-03-16 18:41:37,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:37,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471028466] [2025-03-16 18:41:37,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:37,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-03-16 18:41:37,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-03-16 18:41:37,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:37,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:37,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:37,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471028466] [2025-03-16 18:41:37,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471028466] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:37,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208684428] [2025-03-16 18:41:37,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:37,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:37,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:37,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:37,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-16 18:41:37,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-03-16 18:41:37,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-03-16 18:41:37,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:37,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:37,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 1617 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:41:37,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2025-03-16 18:41:38,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:41:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208684428] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:38,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:41:38,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-16 18:41:38,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374914185] [2025-03-16 18:41:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:38,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:38,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:38,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 18:41:38,092 INFO L87 Difference]: Start difference. First operand 2459 states and 3691 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2025-03-16 18:41:38,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:38,221 INFO L93 Difference]: Finished difference Result 7184 states and 11088 transitions. [2025-03-16 18:41:38,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:38,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 217 [2025-03-16 18:41:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:38,252 INFO L225 Difference]: With dead ends: 7184 [2025-03-16 18:41:38,252 INFO L226 Difference]: Without dead ends: 4758 [2025-03-16 18:41:38,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 18:41:38,263 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 680 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 18:41:38,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1691 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:38,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4758 states. [2025-03-16 18:41:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4758 to 4756. [2025-03-16 18:41:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4756 states, 3646 states have (on average 1.4969829950630829) internal successors, (5458), 3702 states have internal predecessors, (5458), 764 states have call successors, (764), 329 states have call predecessors, (764), 345 states have return successors, (1004), 756 states have call predecessors, (1004), 756 states have call successors, (1004) [2025-03-16 18:41:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4756 states to 4756 states and 7226 transitions. [2025-03-16 18:41:38,481 INFO L78 Accepts]: Start accepts. Automaton has 4756 states and 7226 transitions. Word has length 217 [2025-03-16 18:41:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:38,481 INFO L471 AbstractCegarLoop]: Abstraction has 4756 states and 7226 transitions. [2025-03-16 18:41:38,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2025-03-16 18:41:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4756 states and 7226 transitions. [2025-03-16 18:41:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-03-16 18:41:38,495 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:38,495 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] [2025-03-16 18:41:38,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-16 18:41:38,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-16 18:41:38,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:38,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:38,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1183203108, now seen corresponding path program 1 times [2025-03-16 18:41:38,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:38,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290209052] [2025-03-16 18:41:38,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:38,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:38,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-03-16 18:41:38,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-03-16 18:41:38,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:38,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:38,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:38,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290209052] [2025-03-16 18:41:38,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290209052] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:41:38,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843715492] [2025-03-16 18:41:38,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:38,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:38,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:41:38,799 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:41:38,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-16 18:41:38,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-03-16 18:41:39,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-03-16 18:41:39,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:39,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:39,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:41:39,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:41:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:39,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-16 18:41:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:39,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843715492] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-16 18:41:39,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-16 18:41:39,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-16 18:41:39,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941810759] [2025-03-16 18:41:39,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-16 18:41:39,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 18:41:39,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:39,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 18:41:39,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-16 18:41:39,250 INFO L87 Difference]: Start difference. First operand 4756 states and 7226 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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) [2025-03-16 18:41:39,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:39,500 INFO L93 Difference]: Finished difference Result 10578 states and 16407 transitions. [2025-03-16 18:41:39,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:41:39,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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 221 [2025-03-16 18:41:39,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:39,588 INFO L225 Difference]: With dead ends: 10578 [2025-03-16 18:41:39,589 INFO L226 Difference]: Without dead ends: 8224 [2025-03-16 18:41:39,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-16 18:41:39,597 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 476 mSDsluCounter, 2848 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 18:41:39,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 3725 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:41:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8224 states. [2025-03-16 18:41:39,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8224 to 8040. [2025-03-16 18:41:39,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8040 states, 6422 states have (on average 1.5400186857676736) internal successors, (9890), 6478 states have internal predecessors, (9890), 1272 states have call successors, (1272), 329 states have call predecessors, (1272), 345 states have return successors, (1552), 1264 states have call predecessors, (1552), 1264 states have call successors, (1552) [2025-03-16 18:41:39,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8040 states to 8040 states and 12714 transitions. [2025-03-16 18:41:39,958 INFO L78 Accepts]: Start accepts. Automaton has 8040 states and 12714 transitions. Word has length 221 [2025-03-16 18:41:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:39,958 INFO L471 AbstractCegarLoop]: Abstraction has 8040 states and 12714 transitions. [2025-03-16 18:41:39,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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) [2025-03-16 18:41:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 8040 states and 12714 transitions. [2025-03-16 18:41:39,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-16 18:41:39,988 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:39,988 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] [2025-03-16 18:41:39,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-16 18:41:40,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:41:40,189 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:40,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:40,190 INFO L85 PathProgramCache]: Analyzing trace with hash -962542132, now seen corresponding path program 1 times [2025-03-16 18:41:40,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:40,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983086524] [2025-03-16 18:41:40,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:40,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-16 18:41:40,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-16 18:41:40,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:40,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:40,267 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:40,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:40,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983086524] [2025-03-16 18:41:40,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983086524] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:40,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:40,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:40,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597191127] [2025-03-16 18:41:40,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:40,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:40,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:40,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:40,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:40,270 INFO L87 Difference]: Start difference. First operand 8040 states and 12714 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2025-03-16 18:41:40,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:40,573 INFO L93 Difference]: Finished difference Result 18666 states and 29846 transitions. [2025-03-16 18:41:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:40,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 226 [2025-03-16 18:41:40,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:40,617 INFO L225 Difference]: With dead ends: 18666 [2025-03-16 18:41:40,618 INFO L226 Difference]: Without dead ends: 11816 [2025-03-16 18:41:40,633 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 [2025-03-16 18:41:40,633 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 160 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1686 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 [2025-03-16 18:41:40,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1686 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:40,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11816 states. [2025-03-16 18:41:40,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11816 to 11752. [2025-03-16 18:41:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11752 states, 9514 states have (on average 1.5537103216312802) internal successors, (14782), 9570 states have internal predecessors, (14782), 1892 states have call successors, (1892), 329 states have call predecessors, (1892), 345 states have return successors, (2212), 1884 states have call predecessors, (2212), 1884 states have call successors, (2212) [2025-03-16 18:41:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11752 states to 11752 states and 18886 transitions. [2025-03-16 18:41:40,965 INFO L78 Accepts]: Start accepts. Automaton has 11752 states and 18886 transitions. Word has length 226 [2025-03-16 18:41:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:40,966 INFO L471 AbstractCegarLoop]: Abstraction has 11752 states and 18886 transitions. [2025-03-16 18:41:40,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2025-03-16 18:41:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 11752 states and 18886 transitions. [2025-03-16 18:41:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2025-03-16 18:41:40,997 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:40,997 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] [2025-03-16 18:41:40,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-16 18:41:40,997 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:40,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2135749128, now seen corresponding path program 1 times [2025-03-16 18:41:40,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:40,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991523716] [2025-03-16 18:41:40,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:40,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:41,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 227 statements into 1 equivalence classes. [2025-03-16 18:41:41,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 227 of 227 statements. [2025-03-16 18:41:41,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:41,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:41,051 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:41,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:41,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991523716] [2025-03-16 18:41:41,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991523716] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:41,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:41,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:41,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614924368] [2025-03-16 18:41:41,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:41,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:41,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:41,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:41,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:41,053 INFO L87 Difference]: Start difference. First operand 11752 states and 18886 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2025-03-16 18:41:41,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:41,344 INFO L93 Difference]: Finished difference Result 28026 states and 45410 transitions. [2025-03-16 18:41:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 227 [2025-03-16 18:41:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:41,405 INFO L225 Difference]: With dead ends: 28026 [2025-03-16 18:41:41,405 INFO L226 Difference]: Without dead ends: 17184 [2025-03-16 18:41:41,429 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 [2025-03-16 18:41:41,431 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 158 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1670 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 [2025-03-16 18:41:41,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1670 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17184 states. [2025-03-16 18:41:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17184 to 17120. [2025-03-16 18:41:41,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17120 states, 14046 states have (on average 1.5664246048697137) internal successors, (22002), 14102 states have internal predecessors, (22002), 2728 states have call successors, (2728), 329 states have call predecessors, (2728), 345 states have return successors, (3048), 2720 states have call predecessors, (3048), 2720 states have call successors, (3048) [2025-03-16 18:41:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17120 states to 17120 states and 27778 transitions. [2025-03-16 18:41:41,959 INFO L78 Accepts]: Start accepts. Automaton has 17120 states and 27778 transitions. Word has length 227 [2025-03-16 18:41:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:41,959 INFO L471 AbstractCegarLoop]: Abstraction has 17120 states and 27778 transitions. [2025-03-16 18:41:41,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2025-03-16 18:41:41,960 INFO L276 IsEmpty]: Start isEmpty. Operand 17120 states and 27778 transitions. [2025-03-16 18:41:42,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-03-16 18:41:42,006 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:42,006 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] [2025-03-16 18:41:42,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-16 18:41:42,006 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash -602942453, now seen corresponding path program 1 times [2025-03-16 18:41:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067132870] [2025-03-16 18:41:42,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:42,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-03-16 18:41:42,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-03-16 18:41:42,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:42,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:42,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067132870] [2025-03-16 18:41:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067132870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:42,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005301607] [2025-03-16 18:41:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:42,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:42,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:42,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:42,066 INFO L87 Difference]: Start difference. First operand 17120 states and 27778 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2025-03-16 18:41:42,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:42,723 INFO L93 Difference]: Finished difference Result 40582 states and 66374 transitions. [2025-03-16 18:41:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:42,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 228 [2025-03-16 18:41:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:42,839 INFO L225 Difference]: With dead ends: 40582 [2025-03-16 18:41:42,839 INFO L226 Difference]: Without dead ends: 25452 [2025-03-16 18:41:42,884 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 [2025-03-16 18:41:42,886 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 156 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 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 [2025-03-16 18:41:42,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1665 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25452 states. [2025-03-16 18:41:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25452 to 25388. [2025-03-16 18:41:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25388 states, 21170 states have (on average 1.5777987718469533) internal successors, (33402), 21226 states have internal predecessors, (33402), 3872 states have call successors, (3872), 329 states have call predecessors, (3872), 345 states have return successors, (4256), 3864 states have call predecessors, (4256), 3864 states have call successors, (4256) [2025-03-16 18:41:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25388 states to 25388 states and 41530 transitions. [2025-03-16 18:41:44,058 INFO L78 Accepts]: Start accepts. Automaton has 25388 states and 41530 transitions. Word has length 228 [2025-03-16 18:41:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:44,059 INFO L471 AbstractCegarLoop]: Abstraction has 25388 states and 41530 transitions. [2025-03-16 18:41:44,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2025-03-16 18:41:44,059 INFO L276 IsEmpty]: Start isEmpty. Operand 25388 states and 41530 transitions. [2025-03-16 18:41:44,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-03-16 18:41:44,134 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:44,134 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] [2025-03-16 18:41:44,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-16 18:41:44,135 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:44,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:44,135 INFO L85 PathProgramCache]: Analyzing trace with hash 765569257, now seen corresponding path program 1 times [2025-03-16 18:41:44,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:44,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315643655] [2025-03-16 18:41:44,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:44,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:44,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-03-16 18:41:44,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-03-16 18:41:44,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:44,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:44,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:44,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315643655] [2025-03-16 18:41:44,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315643655] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:44,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:44,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:44,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409767943] [2025-03-16 18:41:44,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:44,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:44,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:44,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:44,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:44,203 INFO L87 Difference]: Start difference. First operand 25388 states and 41530 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2025-03-16 18:41:44,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:44,876 INFO L93 Difference]: Finished difference Result 60870 states and 100366 transitions. [2025-03-16 18:41:44,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:44,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 229 [2025-03-16 18:41:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:44,995 INFO L225 Difference]: With dead ends: 60870 [2025-03-16 18:41:44,995 INFO L226 Difference]: Without dead ends: 39068 [2025-03-16 18:41:45,033 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 [2025-03-16 18:41:45,037 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 154 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 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 [2025-03-16 18:41:45,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1665 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:45,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39068 states. [2025-03-16 18:41:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39068 to 39004. [2025-03-16 18:41:46,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39004 states, 33022 states have (on average 1.588335049361032) internal successors, (52450), 33078 states have internal predecessors, (52450), 5636 states have call successors, (5636), 329 states have call predecessors, (5636), 345 states have return successors, (6124), 5628 states have call predecessors, (6124), 5628 states have call successors, (6124) [2025-03-16 18:41:46,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39004 states to 39004 states and 64210 transitions. [2025-03-16 18:41:46,207 INFO L78 Accepts]: Start accepts. Automaton has 39004 states and 64210 transitions. Word has length 229 [2025-03-16 18:41:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:46,207 INFO L471 AbstractCegarLoop]: Abstraction has 39004 states and 64210 transitions. [2025-03-16 18:41:46,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2025-03-16 18:41:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 39004 states and 64210 transitions. [2025-03-16 18:41:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2025-03-16 18:41:46,323 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:46,323 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] [2025-03-16 18:41:46,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-16 18:41:46,323 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:46,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:46,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1576309866, now seen corresponding path program 1 times [2025-03-16 18:41:46,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:46,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290907687] [2025-03-16 18:41:46,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:46,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:46,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes. [2025-03-16 18:41:46,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements. [2025-03-16 18:41:46,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:46,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:46,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290907687] [2025-03-16 18:41:46,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290907687] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:46,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:46,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:46,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403681503] [2025-03-16 18:41:46,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:46,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:46,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:46,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:46,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:46,385 INFO L87 Difference]: Start difference. First operand 39004 states and 64210 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2025-03-16 18:41:47,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:47,959 INFO L93 Difference]: Finished difference Result 95994 states and 158710 transitions. [2025-03-16 18:41:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:47,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 230 [2025-03-16 18:41:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:48,175 INFO L225 Difference]: With dead ends: 95994 [2025-03-16 18:41:48,175 INFO L226 Difference]: Without dead ends: 62744 [2025-03-16 18:41:48,232 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 [2025-03-16 18:41:48,233 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 152 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1685 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 [2025-03-16 18:41:48,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1685 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62744 states. [2025-03-16 18:41:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62744 to 62680. [2025-03-16 18:41:49,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62680 states, 53054 states have (on average 1.5840841406868473) internal successors, (84042), 53110 states have internal predecessors, (84042), 9280 states have call successors, (9280), 329 states have call predecessors, (9280), 345 states have return successors, (9944), 9272 states have call predecessors, (9944), 9272 states have call successors, (9944) [2025-03-16 18:41:50,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62680 states to 62680 states and 103266 transitions. [2025-03-16 18:41:50,295 INFO L78 Accepts]: Start accepts. Automaton has 62680 states and 103266 transitions. Word has length 230 [2025-03-16 18:41:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:50,295 INFO L471 AbstractCegarLoop]: Abstraction has 62680 states and 103266 transitions. [2025-03-16 18:41:50,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2025-03-16 18:41:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 62680 states and 103266 transitions. [2025-03-16 18:41:50,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-03-16 18:41:50,500 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:50,500 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] [2025-03-16 18:41:50,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-16 18:41:50,500 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:50,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash -100408054, now seen corresponding path program 1 times [2025-03-16 18:41:50,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:50,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6262362] [2025-03-16 18:41:50,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:50,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:50,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-03-16 18:41:50,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-03-16 18:41:50,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:50,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:50,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:50,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6262362] [2025-03-16 18:41:50,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6262362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:50,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:50,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:50,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707701215] [2025-03-16 18:41:50,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:50,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:50,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:50,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:50,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:50,562 INFO L87 Difference]: Start difference. First operand 62680 states and 103266 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) [2025-03-16 18:41:52,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:41:52,828 INFO L93 Difference]: Finished difference Result 160410 states and 266270 transitions. [2025-03-16 18:41:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:41:52,828 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 [2025-03-16 18:41:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:41:53,474 INFO L225 Difference]: With dead ends: 160410 [2025-03-16 18:41:53,474 INFO L226 Difference]: Without dead ends: 106136 [2025-03-16 18:41:53,581 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 [2025-03-16 18:41:53,582 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 150 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1668 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 [2025-03-16 18:41:53,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1668 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:41:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106136 states. [2025-03-16 18:41:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106136 to 106072. [2025-03-16 18:41:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106072 states, 90214 states have (on average 1.59099474582659) internal successors, (143530), 90270 states have internal predecessors, (143530), 15512 states have call successors, (15512), 329 states have call predecessors, (15512), 345 states have return successors, (16488), 15504 states have call predecessors, (16488), 15504 states have call successors, (16488) [2025-03-16 18:41:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106072 states to 106072 states and 175530 transitions. [2025-03-16 18:41:57,071 INFO L78 Accepts]: Start accepts. Automaton has 106072 states and 175530 transitions. Word has length 231 [2025-03-16 18:41:57,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:41:57,072 INFO L471 AbstractCegarLoop]: Abstraction has 106072 states and 175530 transitions. [2025-03-16 18:41:57,072 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) [2025-03-16 18:41:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 106072 states and 175530 transitions. [2025-03-16 18:41:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2025-03-16 18:41:57,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:41:57,397 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] [2025-03-16 18:41:57,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-16 18:41:57,397 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:41:57,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:41:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash -637814935, now seen corresponding path program 1 times [2025-03-16 18:41:57,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:41:57,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288143071] [2025-03-16 18:41:57,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:41:57,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:41:57,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 232 statements into 1 equivalence classes. [2025-03-16 18:41:57,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 232 of 232 statements. [2025-03-16 18:41:57,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:41:57,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:41:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:41:57,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:41:57,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288143071] [2025-03-16 18:41:57,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288143071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:41:57,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:41:57,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:41:57,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733772629] [2025-03-16 18:41:57,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:41:57,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:41:57,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:41:57,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:41:57,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:41:57,459 INFO L87 Difference]: Start difference. First operand 106072 states and 175530 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) [2025-03-16 18:42:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:42:01,453 INFO L93 Difference]: Finished difference Result 261006 states and 429794 transitions. [2025-03-16 18:42:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:42:01,454 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 [2025-03-16 18:42:01,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:42:02,317 INFO L225 Difference]: With dead ends: 261006 [2025-03-16 18:42:02,317 INFO L226 Difference]: Without dead ends: 169504 [2025-03-16 18:42:02,473 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 [2025-03-16 18:42:02,474 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 148 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1645 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 [2025-03-16 18:42:02,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1645 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:42:02,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169504 states. [2025-03-16 18:42:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169504 to 169440. [2025-03-16 18:42:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169440 states, 144306 states have (on average 1.563718764292545) internal successors, (225654), 144362 states have internal predecessors, (225654), 24788 states have call successors, (24788), 329 states have call predecessors, (24788), 345 states have return successors, (26340), 24780 states have call predecessors, (26340), 24780 states have call successors, (26340) [2025-03-16 18:42:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169440 states to 169440 states and 276782 transitions. [2025-03-16 18:42:08,165 INFO L78 Accepts]: Start accepts. Automaton has 169440 states and 276782 transitions. Word has length 232 [2025-03-16 18:42:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:42:08,166 INFO L471 AbstractCegarLoop]: Abstraction has 169440 states and 276782 transitions. [2025-03-16 18:42:08,166 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) [2025-03-16 18:42:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 169440 states and 276782 transitions. [2025-03-16 18:42:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-03-16 18:42:08,974 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:42:08,974 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] [2025-03-16 18:42:08,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-16 18:42:08,974 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:42:08,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:42:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1602902005, now seen corresponding path program 1 times [2025-03-16 18:42:08,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:42:08,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489048143] [2025-03-16 18:42:08,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:42:08,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:42:08,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-03-16 18:42:09,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-03-16 18:42:09,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:42:09,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:42:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-03-16 18:42:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:42:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489048143] [2025-03-16 18:42:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489048143] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:42:09,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:42:09,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 18:42:09,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154871066] [2025-03-16 18:42:09,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:42:09,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:42:09,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:42:09,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:42:09,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 18:42:09,040 INFO L87 Difference]: Start difference. First operand 169440 states and 276782 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)