./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.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_spec3_product35.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 a235b81518d1466c5f4be9b22c3eaea6ff575e28236a3798a0ed19e321bfc6e0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:55:56,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:55:56,516 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:55:56,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:55:56,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:55:56,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:55:56,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:55:56,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:55:56,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:55:56,548 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:55:56,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:55:56,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:55:56,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:55:56,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:55:56,551 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:55:56,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:55:56,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:55:56,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:55:56,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:55:56,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:55:56,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:55:56,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:55:56,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:55:56,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:55:56,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:55:56,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:55:56,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:55:56,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:55:56,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:55:56,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:55:56,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:55:56,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:55:56,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:55:56,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:55:56,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:55:56,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:55:56,558 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a235b81518d1466c5f4be9b22c3eaea6ff575e28236a3798a0ed19e321bfc6e0 [2024-11-22 01:55:56,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:55:56,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:55:56,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:55:56,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:55:56,816 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:55:56,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product35.cil.c [2024-11-22 01:55:58,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:55:58,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:55:58,548 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product35.cil.c [2024-11-22 01:55:58,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086acb0fb/b72860372329437982e931cfffed34f3/FLAG9477a864a [2024-11-22 01:55:58,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086acb0fb/b72860372329437982e931cfffed34f3 [2024-11-22 01:55:58,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:55:58,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:55:58,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:55:58,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:55:58,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:55:58,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:58" (1/1) ... [2024-11-22 01:55:58,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63048e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:58, skipping insertion in model container [2024-11-22 01:55:58,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:58" (1/1) ... [2024-11-22 01:55:58,664 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:55:59,237 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_spec3_product35.cil.c[61781,61794] [2024-11-22 01:55:59,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:55:59,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:55:59,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-22 01:55:59,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [392] [2024-11-22 01:55:59,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [854] [2024-11-22 01:55:59,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [913] [2024-11-22 01:55:59,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1973] [2024-11-22 01:55:59,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2372] [2024-11-22 01:55:59,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2507] [2024-11-22 01:55:59,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2873] [2024-11-22 01:55:59,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2908] [2024-11-22 01:55:59,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2925] [2024-11-22 01:55:59,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2934] [2024-11-22 01:55:59,341 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_spec3_product35.cil.c[61781,61794] [2024-11-22 01:55:59,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:55:59,375 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:55:59,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59 WrapperNode [2024-11-22 01:55:59,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:55:59,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:55:59,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:55:59,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:55:59,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,472 INFO L138 Inliner]: procedures = 138, calls = 234, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1185 [2024-11-22 01:55:59,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:55:59,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:55:59,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:55:59,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:55:59,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,520 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]. [2024-11-22 01:55:59,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:55:59,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:55:59,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:55:59,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:55:59,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (1/1) ... [2024-11-22 01:55:59,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:55:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:55:59,638 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) [2024-11-22 01:55:59,642 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 [2024-11-22 01:55:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-22 01:55:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-22 01:55:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-22 01:55:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-22 01:55:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-22 01:55:59,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-22 01:55:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-22 01:55:59,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-22 01:55:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-22 01:55:59,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-22 01:55:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:55:59,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:55:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-22 01:55:59,697 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-22 01:55:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:55:59,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:55:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:55:59,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:55:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:55:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:55:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-22 01:55:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-22 01:55:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:55:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:55:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:55:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:55:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:55:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:55:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:55:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:55:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:55:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:55:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:55:59,702 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:55:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:55:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:55:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:55:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-22 01:55:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-22 01:55:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:55:59,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:55:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:55:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:55:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:55:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:55:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:55:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:55:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:55:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:55:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-22 01:55:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:55:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:55:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:55:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:55:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:55:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:55:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:55:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-22 01:55:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-22 01:55:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:55:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:55:59,925 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:55:59,928 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:56:00,908 INFO L? ?]: Removed 614 outVars from TransFormulas that were not future-live. [2024-11-22 01:56:00,908 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:56:00,945 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:56:00,945 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:56:00,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:00 BoogieIcfgContainer [2024-11-22 01:56:00,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:56:00,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:56:00,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:56:00,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:56:00,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:55:58" (1/3) ... [2024-11-22 01:56:00,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a0dc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:00, skipping insertion in model container [2024-11-22 01:56:00,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:59" (2/3) ... [2024-11-22 01:56:00,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a0dc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:00, skipping insertion in model container [2024-11-22 01:56:00,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:00" (3/3) ... [2024-11-22 01:56:00,957 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2024-11-22 01:56:00,972 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:56:00,972 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:56:01,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:56:01,069 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;@262f022, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:56:01,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:56:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 477 states, 365 states have (on average 1.5315068493150685) internal successors, (559), 372 states have internal predecessors, (559), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-22 01:56:01,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:56:01,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:01,112 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:01,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:01,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1167867297, now seen corresponding path program 1 times [2024-11-22 01:56:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:01,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4520724] [2024-11-22 01:56:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-22 01:56:01,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:01,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4520724] [2024-11-22 01:56:01,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4520724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17482532] [2024-11-22 01:56:01,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:01,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:01,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:01,862 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) [2024-11-22 01:56:01,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:56:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:02,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:56:02,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 01:56:02,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:02,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17482532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:02,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:02,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 01:56:02,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731803257] [2024-11-22 01:56:02,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:02,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:56:02,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:56:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:56:02,328 INFO L87 Difference]: Start difference. First operand has 477 states, 365 states have (on average 1.5315068493150685) internal successors, (559), 372 states have internal predecessors, (559), 80 states have call successors, (80), 30 states have call predecessors, (80), 30 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:02,419 INFO L93 Difference]: Finished difference Result 755 states and 1120 transitions. [2024-11-22 01:56:02,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:56:02,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2024-11-22 01:56:02,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:02,443 INFO L225 Difference]: With dead ends: 755 [2024-11-22 01:56:02,443 INFO L226 Difference]: Without dead ends: 469 [2024-11-22 01:56:02,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:56:02,457 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:02,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:02,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-22 01:56:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2024-11-22 01:56:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 359 states have (on average 1.5264623955431755) internal successors, (548), 364 states have internal predecessors, (548), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-22 01:56:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 705 transitions. [2024-11-22 01:56:02,543 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 705 transitions. Word has length 139 [2024-11-22 01:56:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:02,546 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 705 transitions. [2024-11-22 01:56:02,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 705 transitions. [2024-11-22 01:56:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 01:56:02,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:02,554 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:02,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:56:02,758 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,SelfDestructingSolverStorable0 [2024-11-22 01:56:02,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:02,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1965185956, now seen corresponding path program 1 times [2024-11-22 01:56:02,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:02,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321436451] [2024-11-22 01:56:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:02,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-22 01:56:03,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321436451] [2024-11-22 01:56:03,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321436451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175586627] [2024-11-22 01:56:03,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:03,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:03,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:03,058 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) [2024-11-22 01:56:03,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:56:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:03,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:56:03,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 01:56:03,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:03,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175586627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:03,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:03,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:56:03,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162802262] [2024-11-22 01:56:03,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:03,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:03,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:03,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:03,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:03,423 INFO L87 Difference]: Start difference. First operand 469 states and 705 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:03,471 INFO L93 Difference]: Finished difference Result 744 states and 1094 transitions. [2024-11-22 01:56:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:03,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2024-11-22 01:56:03,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:03,478 INFO L225 Difference]: With dead ends: 744 [2024-11-22 01:56:03,478 INFO L226 Difference]: Without dead ends: 472 [2024-11-22 01:56:03,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:03,483 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 1 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:03,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1404 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-22 01:56:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2024-11-22 01:56:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 361 states have (on average 1.5235457063711912) internal successors, (550), 366 states have internal predecessors, (550), 80 states have call successors, (80), 30 states have call predecessors, (80), 29 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-22 01:56:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 707 transitions. [2024-11-22 01:56:03,518 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 707 transitions. Word has length 159 [2024-11-22 01:56:03,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:03,518 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 707 transitions. [2024-11-22 01:56:03,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:03,520 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 707 transitions. [2024-11-22 01:56:03,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 01:56:03,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:03,523 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:03,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:56:03,727 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,SelfDestructingSolverStorable1 [2024-11-22 01:56:03,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:03,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:03,729 INFO L85 PathProgramCache]: Analyzing trace with hash 663622155, now seen corresponding path program 1 times [2024-11-22 01:56:03,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:03,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964179821] [2024-11-22 01:56:03,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:03,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 01:56:03,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:03,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964179821] [2024-11-22 01:56:03,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964179821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:03,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853223956] [2024-11-22 01:56:03,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:03,983 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) [2024-11-22 01:56:03,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:56:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:04,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:56:04,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 01:56:04,301 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853223956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:04,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:04,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 01:56:04,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265620195] [2024-11-22 01:56:04,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:04,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:04,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:04,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:04,304 INFO L87 Difference]: Start difference. First operand 471 states and 707 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:04,352 INFO L93 Difference]: Finished difference Result 995 states and 1514 transitions. [2024-11-22 01:56:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:04,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-11-22 01:56:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:04,355 INFO L225 Difference]: With dead ends: 995 [2024-11-22 01:56:04,356 INFO L226 Difference]: Without dead ends: 551 [2024-11-22 01:56:04,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:04,358 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 142 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1370 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 [2024-11-22 01:56:04,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1370 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-22 01:56:04,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 543. [2024-11-22 01:56:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 419 states have (on average 1.5441527446300716) internal successors, (647), 424 states have internal predecessors, (647), 94 states have call successors, (94), 30 states have call predecessors, (94), 29 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-22 01:56:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 832 transitions. [2024-11-22 01:56:04,388 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 832 transitions. Word has length 168 [2024-11-22 01:56:04,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:04,389 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 832 transitions. [2024-11-22 01:56:04,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 832 transitions. [2024-11-22 01:56:04,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 01:56:04,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:04,395 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:04,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:56:04,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:04,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:04,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash -834949809, now seen corresponding path program 1 times [2024-11-22 01:56:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:04,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340459144] [2024-11-22 01:56:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:04,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 01:56:04,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:04,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340459144] [2024-11-22 01:56:04,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340459144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:04,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208129746] [2024-11-22 01:56:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:04,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:04,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:04,860 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) [2024-11-22 01:56:04,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:56:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:05,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:56:05,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 01:56:05,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:05,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208129746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:05,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:05,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 01:56:05,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135568266] [2024-11-22 01:56:05,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:05,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:56:05,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:05,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:56:05,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:56:05,193 INFO L87 Difference]: Start difference. First operand 543 states and 832 transitions. Second operand has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 01:56:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:05,250 INFO L93 Difference]: Finished difference Result 1077 states and 1654 transitions. [2024-11-22 01:56:05,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:56:05,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 169 [2024-11-22 01:56:05,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:05,253 INFO L225 Difference]: With dead ends: 1077 [2024-11-22 01:56:05,253 INFO L226 Difference]: Without dead ends: 545 [2024-11-22 01:56:05,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:56:05,259 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 2 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:05,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2777 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-22 01:56:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-22 01:56:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.542857142857143) internal successors, (648), 426 states have internal predecessors, (648), 94 states have call successors, (94), 30 states have call predecessors, (94), 30 states have return successors, (93), 90 states have call predecessors, (93), 91 states have call successors, (93) [2024-11-22 01:56:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 835 transitions. [2024-11-22 01:56:05,285 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 835 transitions. Word has length 169 [2024-11-22 01:56:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:05,286 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 835 transitions. [2024-11-22 01:56:05,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 01:56:05,286 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 835 transitions. [2024-11-22 01:56:05,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 01:56:05,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:05,290 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:05,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 01:56:05,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:05,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:05,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:05,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1061317573, now seen corresponding path program 1 times [2024-11-22 01:56:05,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:05,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547350084] [2024-11-22 01:56:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:05,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:05,679 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 01:56:05,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:05,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547350084] [2024-11-22 01:56:05,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547350084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:05,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997767501] [2024-11-22 01:56:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:05,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:05,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:05,682 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) [2024-11-22 01:56:05,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:56:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:05,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:56:05,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:56:06,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:06,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997767501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:06,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:06,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-22 01:56:06,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179504831] [2024-11-22 01:56:06,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:06,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:56:06,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:06,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:56:06,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:56:06,055 INFO L87 Difference]: Start difference. First operand 545 states and 835 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:56:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:06,123 INFO L93 Difference]: Finished difference Result 1079 states and 1659 transitions. [2024-11-22 01:56:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:56:06,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-22 01:56:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:06,127 INFO L225 Difference]: With dead ends: 1079 [2024-11-22 01:56:06,127 INFO L226 Difference]: Without dead ends: 547 [2024-11-22 01:56:06,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:56:06,130 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 2 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:06,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2763 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:06,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-22 01:56:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-22 01:56:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 421 states have (on average 1.5415676959619953) internal successors, (649), 428 states have internal predecessors, (649), 94 states have call successors, (94), 30 states have call predecessors, (94), 31 states have return successors, (98), 90 states have call predecessors, (98), 91 states have call successors, (98) [2024-11-22 01:56:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 841 transitions. [2024-11-22 01:56:06,145 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 841 transitions. Word has length 151 [2024-11-22 01:56:06,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:06,146 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 841 transitions. [2024-11-22 01:56:06,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:56:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 841 transitions. [2024-11-22 01:56:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 01:56:06,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:06,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:06,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:56:06,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:06,349 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:06,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:06,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1881780488, now seen corresponding path program 1 times [2024-11-22 01:56:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:06,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969015925] [2024-11-22 01:56:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:06,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 01:56:06,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:06,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969015925] [2024-11-22 01:56:06,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969015925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:06,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:06,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:56:06,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944890200] [2024-11-22 01:56:06,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:06,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:56:06,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:56:06,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:56:06,505 INFO L87 Difference]: Start difference. First operand 547 states and 841 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:56:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:06,544 INFO L93 Difference]: Finished difference Result 1071 states and 1650 transitions. [2024-11-22 01:56:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:56:06,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 152 [2024-11-22 01:56:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:06,548 INFO L225 Difference]: With dead ends: 1071 [2024-11-22 01:56:06,548 INFO L226 Difference]: Without dead ends: 547 [2024-11-22 01:56:06,550 INFO L431 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 [2024-11-22 01:56:06,552 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 2 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:06,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2781 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-22 01:56:06,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-22 01:56:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 421 states have (on average 1.5415676959619953) internal successors, (649), 428 states have internal predecessors, (649), 94 states have call successors, (94), 30 states have call predecessors, (94), 31 states have return successors, (97), 90 states have call predecessors, (97), 91 states have call successors, (97) [2024-11-22 01:56:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 840 transitions. [2024-11-22 01:56:06,567 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 840 transitions. Word has length 152 [2024-11-22 01:56:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:06,568 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 840 transitions. [2024-11-22 01:56:06,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:56:06,569 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 840 transitions. [2024-11-22 01:56:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 01:56:06,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:06,571 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 01:56:06,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:56:06,571 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash 253588646, now seen corresponding path program 1 times [2024-11-22 01:56:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:06,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523942498] [2024-11-22 01:56:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:06,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 01:56:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523942498] [2024-11-22 01:56:06,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523942498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:06,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:06,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:56:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041776490] [2024-11-22 01:56:06,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:06,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:56:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:56:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:56:06,740 INFO L87 Difference]: Start difference. First operand 547 states and 840 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 01:56:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:06,779 INFO L93 Difference]: Finished difference Result 1073 states and 1653 transitions. [2024-11-22 01:56:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:56:06,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 172 [2024-11-22 01:56:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:06,784 INFO L225 Difference]: With dead ends: 1073 [2024-11-22 01:56:06,784 INFO L226 Difference]: Without dead ends: 549 [2024-11-22 01:56:06,785 INFO L431 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 [2024-11-22 01:56:06,786 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 1 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:06,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2784 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-22 01:56:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-22 01:56:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 422 states have (on average 1.5402843601895735) internal successors, (650), 430 states have internal predecessors, (650), 94 states have call successors, (94), 30 states have call predecessors, (94), 32 states have return successors, (99), 90 states have call predecessors, (99), 91 states have call successors, (99) [2024-11-22 01:56:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 843 transitions. [2024-11-22 01:56:06,805 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 843 transitions. Word has length 172 [2024-11-22 01:56:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:06,805 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 843 transitions. [2024-11-22 01:56:06,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 01:56:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 843 transitions. [2024-11-22 01:56:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 01:56:06,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:06,808 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:06,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:56:06,808 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:06,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1680999778, now seen corresponding path program 1 times [2024-11-22 01:56:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:06,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189987574] [2024-11-22 01:56:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 01:56:06,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:06,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189987574] [2024-11-22 01:56:06,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189987574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:06,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:06,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:56:06,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579378086] [2024-11-22 01:56:06,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:06,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:56:06,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:06,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:56:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:56:06,956 INFO L87 Difference]: Start difference. First operand 549 states and 843 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-22 01:56:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:07,065 INFO L93 Difference]: Finished difference Result 1075 states and 1652 transitions. [2024-11-22 01:56:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:56:07,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 173 [2024-11-22 01:56:07,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:07,070 INFO L225 Difference]: With dead ends: 1075 [2024-11-22 01:56:07,070 INFO L226 Difference]: Without dead ends: 551 [2024-11-22 01:56:07,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:56:07,073 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 7 mSDsluCounter, 4105 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4794 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:07,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4794 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:56:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-22 01:56:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-22 01:56:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 424 states have (on average 1.5377358490566038) internal successors, (652), 431 states have internal predecessors, (652), 94 states have call successors, (94), 31 states have call predecessors, (94), 32 states have return successors, (98), 90 states have call predecessors, (98), 91 states have call successors, (98) [2024-11-22 01:56:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 844 transitions. [2024-11-22 01:56:07,109 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 844 transitions. Word has length 173 [2024-11-22 01:56:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:07,109 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 844 transitions. [2024-11-22 01:56:07,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-22 01:56:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 844 transitions. [2024-11-22 01:56:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 01:56:07,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:07,112 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:07,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:56:07,112 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:07,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:07,113 INFO L85 PathProgramCache]: Analyzing trace with hash 923993994, now seen corresponding path program 1 times [2024-11-22 01:56:07,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:07,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536245031] [2024-11-22 01:56:07,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:07,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 01:56:07,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:07,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536245031] [2024-11-22 01:56:07,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536245031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:07,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:07,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:56:07,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001499470] [2024-11-22 01:56:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:07,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:56:07,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:07,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:56:07,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:56:07,258 INFO L87 Difference]: Start difference. First operand 551 states and 844 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-22 01:56:07,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:07,383 INFO L93 Difference]: Finished difference Result 1078 states and 1659 transitions. [2024-11-22 01:56:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:56:07,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 155 [2024-11-22 01:56:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:07,387 INFO L225 Difference]: With dead ends: 1078 [2024-11-22 01:56:07,387 INFO L226 Difference]: Without dead ends: 554 [2024-11-22 01:56:07,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:56:07,390 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 5 mSDsluCounter, 4117 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:07,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4808 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:56:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-22 01:56:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-22 01:56:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 426 states have (on average 1.5352112676056338) internal successors, (654), 434 states have internal predecessors, (654), 94 states have call successors, (94), 31 states have call predecessors, (94), 33 states have return successors, (103), 90 states have call predecessors, (103), 91 states have call successors, (103) [2024-11-22 01:56:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 851 transitions. [2024-11-22 01:56:07,406 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 851 transitions. Word has length 155 [2024-11-22 01:56:07,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:07,406 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 851 transitions. [2024-11-22 01:56:07,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-22 01:56:07,406 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 851 transitions. [2024-11-22 01:56:07,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 01:56:07,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:07,409 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:07,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:56:07,409 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:07,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:07,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1855523143, now seen corresponding path program 1 times [2024-11-22 01:56:07,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:07,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596816628] [2024-11-22 01:56:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:07,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-22 01:56:07,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:07,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596816628] [2024-11-22 01:56:07,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596816628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:07,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160284928] [2024-11-22 01:56:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:07,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:07,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:07,589 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) [2024-11-22 01:56:07,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:56:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:07,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:56:07,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:07,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:56:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:08,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160284928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:56:08,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:56:08,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-22 01:56:08,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241582119] [2024-11-22 01:56:08,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:56:08,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 01:56:08,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:08,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 01:56:08,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:56:08,028 INFO L87 Difference]: Start difference. First operand 554 states and 851 transitions. Second operand has 11 states, 10 states have (on average 16.4) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-22 01:56:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:08,761 INFO L93 Difference]: Finished difference Result 1545 states and 2474 transitions. [2024-11-22 01:56:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:56:08,762 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.4) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 175 [2024-11-22 01:56:08,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:08,768 INFO L225 Difference]: With dead ends: 1545 [2024-11-22 01:56:08,769 INFO L226 Difference]: Without dead ends: 1023 [2024-11-22 01:56:08,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-22 01:56:08,772 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 1460 mSDsluCounter, 5411 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 6112 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:08,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 6112 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 01:56:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-22 01:56:08,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 999. [2024-11-22 01:56:08,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 792 states have (on average 1.5934343434343434) internal successors, (1262), 799 states have internal predecessors, (1262), 173 states have call successors, (173), 32 states have call predecessors, (173), 33 states have return successors, (192), 169 states have call predecessors, (192), 170 states have call successors, (192) [2024-11-22 01:56:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1627 transitions. [2024-11-22 01:56:08,805 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1627 transitions. Word has length 175 [2024-11-22 01:56:08,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:08,805 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1627 transitions. [2024-11-22 01:56:08,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.4) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-22 01:56:08,805 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1627 transitions. [2024-11-22 01:56:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 01:56:08,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:08,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:08,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 01:56:09,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:09,014 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:09,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:09,015 INFO L85 PathProgramCache]: Analyzing trace with hash -401725062, now seen corresponding path program 1 times [2024-11-22 01:56:09,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:09,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496865339] [2024-11-22 01:56:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:09,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:09,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:09,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496865339] [2024-11-22 01:56:09,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496865339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:09,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:09,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:09,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181331419] [2024-11-22 01:56:09,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:09,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:09,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:09,104 INFO L87 Difference]: Start difference. First operand 999 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:09,147 INFO L93 Difference]: Finished difference Result 2338 states and 3872 transitions. [2024-11-22 01:56:09,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:09,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 178 [2024-11-22 01:56:09,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:09,154 INFO L225 Difference]: With dead ends: 2338 [2024-11-22 01:56:09,154 INFO L226 Difference]: Without dead ends: 1422 [2024-11-22 01:56:09,158 INFO L431 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 [2024-11-22 01:56:09,158 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 139 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1407 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 [2024-11-22 01:56:09,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1407 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:09,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-11-22 01:56:09,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1414. [2024-11-22 01:56:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1128 states have (on average 1.6152482269503545) internal successors, (1822), 1135 states have internal predecessors, (1822), 252 states have call successors, (252), 32 states have call predecessors, (252), 33 states have return successors, (281), 248 states have call predecessors, (281), 249 states have call successors, (281) [2024-11-22 01:56:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2355 transitions. [2024-11-22 01:56:09,207 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2355 transitions. Word has length 178 [2024-11-22 01:56:09,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:09,208 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2355 transitions. [2024-11-22 01:56:09,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2355 transitions. [2024-11-22 01:56:09,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 01:56:09,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:09,214 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:09,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:56:09,214 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:09,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1980513845, now seen corresponding path program 1 times [2024-11-22 01:56:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:09,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922997637] [2024-11-22 01:56:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:09,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922997637] [2024-11-22 01:56:09,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922997637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:09,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:09,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:09,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135891070] [2024-11-22 01:56:09,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:09,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:09,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:09,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:09,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:09,285 INFO L87 Difference]: Start difference. First operand 1414 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:09,325 INFO L93 Difference]: Finished difference Result 3377 states and 5669 transitions. [2024-11-22 01:56:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:09,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2024-11-22 01:56:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:09,336 INFO L225 Difference]: With dead ends: 3377 [2024-11-22 01:56:09,336 INFO L226 Difference]: Without dead ends: 2099 [2024-11-22 01:56:09,341 INFO L431 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 [2024-11-22 01:56:09,341 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 137 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1402 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 [2024-11-22 01:56:09,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1402 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2024-11-22 01:56:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2091. [2024-11-22 01:56:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1686 states have (on average 1.6275207591933571) internal successors, (2744), 1693 states have internal predecessors, (2744), 371 states have call successors, (371), 32 states have call predecessors, (371), 33 states have return successors, (400), 367 states have call predecessors, (400), 368 states have call successors, (400) [2024-11-22 01:56:09,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 3515 transitions. [2024-11-22 01:56:09,401 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 3515 transitions. Word has length 179 [2024-11-22 01:56:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:09,402 INFO L471 AbstractCegarLoop]: Abstraction has 2091 states and 3515 transitions. [2024-11-22 01:56:09,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 3515 transitions. [2024-11-22 01:56:09,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-22 01:56:09,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:09,411 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:09,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:56:09,411 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:09,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1336105740, now seen corresponding path program 1 times [2024-11-22 01:56:09,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:09,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589482217] [2024-11-22 01:56:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:09,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:09,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589482217] [2024-11-22 01:56:09,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589482217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:09,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:09,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:09,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533943021] [2024-11-22 01:56:09,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:09,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:09,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:09,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:09,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:09,487 INFO L87 Difference]: Start difference. First operand 2091 states and 3515 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:09,543 INFO L93 Difference]: Finished difference Result 4962 states and 8414 transitions. [2024-11-22 01:56:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:09,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 180 [2024-11-22 01:56:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:09,559 INFO L225 Difference]: With dead ends: 4962 [2024-11-22 01:56:09,559 INFO L226 Difference]: Without dead ends: 3142 [2024-11-22 01:56:09,567 INFO L431 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 [2024-11-22 01:56:09,568 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 135 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1397 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 [2024-11-22 01:56:09,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1397 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:09,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2024-11-22 01:56:09,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 3134. [2024-11-22 01:56:09,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 2567 states have (on average 1.6369302687962601) internal successors, (4202), 2574 states have internal predecessors, (4202), 533 states have call successors, (533), 32 states have call predecessors, (533), 33 states have return successors, (578), 529 states have call predecessors, (578), 530 states have call successors, (578) [2024-11-22 01:56:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 5313 transitions. [2024-11-22 01:56:09,685 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 5313 transitions. Word has length 180 [2024-11-22 01:56:09,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:09,685 INFO L471 AbstractCegarLoop]: Abstraction has 3134 states and 5313 transitions. [2024-11-22 01:56:09,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 5313 transitions. [2024-11-22 01:56:09,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-22 01:56:09,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:09,699 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:09,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:56:09,699 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1635418858, now seen corresponding path program 1 times [2024-11-22 01:56:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:09,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903880328] [2024-11-22 01:56:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:09,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:09,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:09,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903880328] [2024-11-22 01:56:09,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903880328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:09,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:09,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622908245] [2024-11-22 01:56:09,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:09,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:09,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:09,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:09,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:09,762 INFO L87 Difference]: Start difference. First operand 3134 states and 5313 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:09,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:09,882 INFO L93 Difference]: Finished difference Result 7476 states and 12772 transitions. [2024-11-22 01:56:09,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:09,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2024-11-22 01:56:09,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:09,914 INFO L225 Difference]: With dead ends: 7476 [2024-11-22 01:56:09,914 INFO L226 Difference]: Without dead ends: 4832 [2024-11-22 01:56:09,922 INFO L431 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 [2024-11-22 01:56:09,923 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 133 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1397 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 [2024-11-22 01:56:09,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1397 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2024-11-22 01:56:10,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4824. [2024-11-22 01:56:10,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4824 states, 4012 states have (on average 1.6435692921236291) internal successors, (6594), 4019 states have internal predecessors, (6594), 778 states have call successors, (778), 32 states have call predecessors, (778), 33 states have return successors, (849), 774 states have call predecessors, (849), 775 states have call successors, (849) [2024-11-22 01:56:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4824 states to 4824 states and 8221 transitions. [2024-11-22 01:56:10,069 INFO L78 Accepts]: Start accepts. Automaton has 4824 states and 8221 transitions. Word has length 181 [2024-11-22 01:56:10,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:10,070 INFO L471 AbstractCegarLoop]: Abstraction has 4824 states and 8221 transitions. [2024-11-22 01:56:10,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4824 states and 8221 transitions. [2024-11-22 01:56:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-22 01:56:10,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:10,100 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:10,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:56:10,101 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:10,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 448524336, now seen corresponding path program 1 times [2024-11-22 01:56:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863647025] [2024-11-22 01:56:10,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:10,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:10,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863647025] [2024-11-22 01:56:10,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863647025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:10,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:10,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710972708] [2024-11-22 01:56:10,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:10,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:10,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:10,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:10,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:10,170 INFO L87 Difference]: Start difference. First operand 4824 states and 8221 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:10,335 INFO L93 Difference]: Finished difference Result 11677 states and 20049 transitions. [2024-11-22 01:56:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2024-11-22 01:56:10,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:10,384 INFO L225 Difference]: With dead ends: 11677 [2024-11-22 01:56:10,385 INFO L226 Difference]: Without dead ends: 7675 [2024-11-22 01:56:10,405 INFO L431 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 [2024-11-22 01:56:10,406 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 131 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1410 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 [2024-11-22 01:56:10,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1410 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:10,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2024-11-22 01:56:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 7667. [2024-11-22 01:56:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7667 states, 6362 states have (on average 1.6430367808865136) internal successors, (10453), 6369 states have internal predecessors, (10453), 1271 states have call successors, (1271), 32 states have call predecessors, (1271), 33 states have return successors, (1386), 1267 states have call predecessors, (1386), 1268 states have call successors, (1386) [2024-11-22 01:56:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7667 states to 7667 states and 13110 transitions. [2024-11-22 01:56:10,841 INFO L78 Accepts]: Start accepts. Automaton has 7667 states and 13110 transitions. Word has length 182 [2024-11-22 01:56:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:10,842 INFO L471 AbstractCegarLoop]: Abstraction has 7667 states and 13110 transitions. [2024-11-22 01:56:10,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7667 states and 13110 transitions. [2024-11-22 01:56:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-22 01:56:10,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:10,884 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:10,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:56:10,884 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:10,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:10,885 INFO L85 PathProgramCache]: Analyzing trace with hash -106310202, now seen corresponding path program 1 times [2024-11-22 01:56:10,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:10,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281501217] [2024-11-22 01:56:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:10,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:10,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:10,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281501217] [2024-11-22 01:56:10,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281501217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:10,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:10,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:10,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228402555] [2024-11-22 01:56:10,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:10,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:10,963 INFO L87 Difference]: Start difference. First operand 7667 states and 13110 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:11,218 INFO L93 Difference]: Finished difference Result 19292 states and 33214 transitions. [2024-11-22 01:56:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:11,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2024-11-22 01:56:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:11,268 INFO L225 Difference]: With dead ends: 19292 [2024-11-22 01:56:11,268 INFO L226 Difference]: Without dead ends: 12849 [2024-11-22 01:56:11,288 INFO L431 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 [2024-11-22 01:56:11,289 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 129 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1402 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 [2024-11-22 01:56:11,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1402 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:11,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12849 states. [2024-11-22 01:56:11,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12849 to 12841. [2024-11-22 01:56:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12841 states, 10714 states have (on average 1.6442038454358783) internal successors, (17616), 10721 states have internal predecessors, (17616), 2093 states have call successors, (2093), 32 states have call predecessors, (2093), 33 states have return successors, (2286), 2089 states have call predecessors, (2286), 2090 states have call successors, (2286) [2024-11-22 01:56:11,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12841 states to 12841 states and 21995 transitions. [2024-11-22 01:56:11,783 INFO L78 Accepts]: Start accepts. Automaton has 12841 states and 21995 transitions. Word has length 183 [2024-11-22 01:56:11,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:11,783 INFO L471 AbstractCegarLoop]: Abstraction has 12841 states and 21995 transitions. [2024-11-22 01:56:11,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:11,783 INFO L276 IsEmpty]: Start isEmpty. Operand 12841 states and 21995 transitions. [2024-11-22 01:56:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-22 01:56:11,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:11,824 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:11,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:56:11,824 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:11,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:11,825 INFO L85 PathProgramCache]: Analyzing trace with hash 437569779, now seen corresponding path program 1 times [2024-11-22 01:56:11,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:11,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107472817] [2024-11-22 01:56:11,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:11,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 01:56:11,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:11,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107472817] [2024-11-22 01:56:11,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107472817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:11,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:11,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:11,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139125466] [2024-11-22 01:56:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:11,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:11,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:11,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:11,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:11,879 INFO L87 Difference]: Start difference. First operand 12841 states and 21995 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:12,420 INFO L93 Difference]: Finished difference Result 30775 states and 52633 transitions. [2024-11-22 01:56:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:12,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2024-11-22 01:56:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:12,493 INFO L225 Difference]: With dead ends: 30775 [2024-11-22 01:56:12,493 INFO L226 Difference]: Without dead ends: 20162 [2024-11-22 01:56:12,524 INFO L431 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 [2024-11-22 01:56:12,525 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 127 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1380 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 [2024-11-22 01:56:12,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1380 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20162 states. [2024-11-22 01:56:13,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20162 to 20154. [2024-11-22 01:56:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20154 states, 16824 states have (on average 1.6204232049453162) internal successors, (27262), 16831 states have internal predecessors, (27262), 3296 states have call successors, (3296), 32 states have call predecessors, (3296), 33 states have return successors, (3633), 3292 states have call predecessors, (3633), 3293 states have call successors, (3633) [2024-11-22 01:56:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20154 states to 20154 states and 34191 transitions. [2024-11-22 01:56:13,401 INFO L78 Accepts]: Start accepts. Automaton has 20154 states and 34191 transitions. Word has length 165 [2024-11-22 01:56:13,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:13,402 INFO L471 AbstractCegarLoop]: Abstraction has 20154 states and 34191 transitions. [2024-11-22 01:56:13,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:13,402 INFO L276 IsEmpty]: Start isEmpty. Operand 20154 states and 34191 transitions. [2024-11-22 01:56:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-22 01:56:13,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:13,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:13,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:56:13,443 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:13,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:13,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1639084176, now seen corresponding path program 1 times [2024-11-22 01:56:13,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:13,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906941865] [2024-11-22 01:56:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:13,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 01:56:13,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:13,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906941865] [2024-11-22 01:56:13,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906941865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:13,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:13,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:13,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836888090] [2024-11-22 01:56:13,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:13,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:13,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:13,502 INFO L87 Difference]: Start difference. First operand 20154 states and 34191 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:14,233 INFO L93 Difference]: Finished difference Result 53217 states and 90627 transitions. [2024-11-22 01:56:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:14,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2024-11-22 01:56:14,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:14,373 INFO L225 Difference]: With dead ends: 53217 [2024-11-22 01:56:14,373 INFO L226 Difference]: Without dead ends: 35968 [2024-11-22 01:56:14,428 INFO L431 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 [2024-11-22 01:56:14,429 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 125 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1400 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 [2024-11-22 01:56:14,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1400 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35968 states. [2024-11-22 01:56:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35968 to 35960. [2024-11-22 01:56:15,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35960 states, 30180 states have (on average 1.6177601060304838) internal successors, (48824), 30187 states have internal predecessors, (48824), 5746 states have call successors, (5746), 32 states have call predecessors, (5746), 33 states have return successors, (6357), 5742 states have call predecessors, (6357), 5743 states have call successors, (6357) [2024-11-22 01:56:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35960 states to 35960 states and 60927 transitions. [2024-11-22 01:56:16,005 INFO L78 Accepts]: Start accepts. Automaton has 35960 states and 60927 transitions. Word has length 166 [2024-11-22 01:56:16,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:16,006 INFO L471 AbstractCegarLoop]: Abstraction has 35960 states and 60927 transitions. [2024-11-22 01:56:16,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 35960 states and 60927 transitions. [2024-11-22 01:56:16,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 01:56:16,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:16,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:16,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:56:16,079 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:16,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash -827107283, now seen corresponding path program 1 times [2024-11-22 01:56:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:16,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216604435] [2024-11-22 01:56:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:16,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 01:56:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216604435] [2024-11-22 01:56:16,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216604435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:16,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:16,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:16,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959384801] [2024-11-22 01:56:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:16,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:16,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:16,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:16,154 INFO L87 Difference]: Start difference. First operand 35960 states and 60927 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:17,589 INFO L93 Difference]: Finished difference Result 98064 states and 166654 transitions. [2024-11-22 01:56:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2024-11-22 01:56:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:17,917 INFO L225 Difference]: With dead ends: 98064 [2024-11-22 01:56:17,918 INFO L226 Difference]: Without dead ends: 65965 [2024-11-22 01:56:18,028 INFO L431 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 [2024-11-22 01:56:18,029 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 123 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1400 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 [2024-11-22 01:56:18,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1400 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:18,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65965 states. [2024-11-22 01:56:20,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65965 to 65957. [2024-11-22 01:56:20,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65957 states, 55664 states have (on average 1.613915636677206) internal successors, (89837), 55671 states have internal predecessors, (89837), 10259 states have call successors, (10259), 32 states have call predecessors, (10259), 33 states have return successors, (11402), 10255 states have call predecessors, (11402), 10256 states have call successors, (11402) [2024-11-22 01:56:20,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65957 states to 65957 states and 111498 transitions. [2024-11-22 01:56:20,730 INFO L78 Accepts]: Start accepts. Automaton has 65957 states and 111498 transitions. Word has length 167 [2024-11-22 01:56:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:20,731 INFO L471 AbstractCegarLoop]: Abstraction has 65957 states and 111498 transitions. [2024-11-22 01:56:20,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 65957 states and 111498 transitions. [2024-11-22 01:56:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 01:56:20,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:20,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:20,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:56:20,814 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:20,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1049473680, now seen corresponding path program 1 times [2024-11-22 01:56:20,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:20,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89590329] [2024-11-22 01:56:20,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:20,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 01:56:20,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:20,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89590329] [2024-11-22 01:56:20,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89590329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:20,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:20,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:20,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703270271] [2024-11-22 01:56:20,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:20,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:20,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:20,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:20,871 INFO L87 Difference]: Start difference. First operand 65957 states and 111498 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:23,810 INFO L93 Difference]: Finished difference Result 123725 states and 209518 transitions. [2024-11-22 01:56:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2024-11-22 01:56:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:24,409 INFO L225 Difference]: With dead ends: 123725 [2024-11-22 01:56:24,409 INFO L226 Difference]: Without dead ends: 123453 [2024-11-22 01:56:24,484 INFO L431 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 [2024-11-22 01:56:24,489 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 118 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:24,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1414 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123453 states. [2024-11-22 01:56:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123453 to 123445. [2024-11-22 01:56:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123445 states, 104784 states have (on average 1.6089193006565887) internal successors, (168589), 104791 states have internal predecessors, (168589), 18627 states have call successors, (18627), 32 states have call predecessors, (18627), 33 states have return successors, (20816), 18623 states have call predecessors, (20816), 18624 states have call successors, (20816) [2024-11-22 01:56:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123445 states to 123445 states and 208032 transitions. [2024-11-22 01:56:29,334 INFO L78 Accepts]: Start accepts. Automaton has 123445 states and 208032 transitions. Word has length 168 [2024-11-22 01:56:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:29,342 INFO L471 AbstractCegarLoop]: Abstraction has 123445 states and 208032 transitions. [2024-11-22 01:56:29,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:56:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 123445 states and 208032 transitions. [2024-11-22 01:56:29,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-22 01:56:29,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:29,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:29,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:56:29,480 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:29,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash 886679913, now seen corresponding path program 1 times [2024-11-22 01:56:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31642456] [2024-11-22 01:56:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:29,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 01:56:29,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:29,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31642456] [2024-11-22 01:56:29,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31642456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:29,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:29,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:56:29,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373876689] [2024-11-22 01:56:29,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:29,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:56:29,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:56:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:29,618 INFO L87 Difference]: Start difference. First operand 123445 states and 208032 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:34,499 INFO L93 Difference]: Finished difference Result 237299 states and 401521 transitions. [2024-11-22 01:56:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:56:34,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 188 [2024-11-22 01:56:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:35,516 INFO L225 Difference]: With dead ends: 237299 [2024-11-22 01:56:35,516 INFO L226 Difference]: Without dead ends: 237035 [2024-11-22 01:56:35,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:35,929 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 649 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:35,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 3545 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:56:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237035 states. [2024-11-22 01:56:43,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237035 to 237025. [2024-11-22 01:56:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237025 states, 201208 states have (on average 1.6122569679138006) internal successors, (324399), 201163 states have internal predecessors, (324399), 35754 states have call successors, (35754), 60 states have call predecessors, (35754), 62 states have return successors, (39035), 35805 states have call predecessors, (39035), 35750 states have call successors, (39035) [2024-11-22 01:56:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237025 states to 237025 states and 399188 transitions. [2024-11-22 01:56:44,121 INFO L78 Accepts]: Start accepts. Automaton has 237025 states and 399188 transitions. Word has length 188 [2024-11-22 01:56:44,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:44,121 INFO L471 AbstractCegarLoop]: Abstraction has 237025 states and 399188 transitions. [2024-11-22 01:56:44,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 237025 states and 399188 transitions. [2024-11-22 01:56:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 01:56:44,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:44,274 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:44,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:56:44,274 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:44,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1645697612, now seen corresponding path program 1 times [2024-11-22 01:56:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:44,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565724757] [2024-11-22 01:56:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 01:56:44,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:44,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565724757] [2024-11-22 01:56:44,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565724757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:44,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335656345] [2024-11-22 01:56:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:44,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:44,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:44,679 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) [2024-11-22 01:56:44,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:56:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:45,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 01:56:45,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 01:56:45,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:56:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 01:56:45,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335656345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:56:45,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:56:45,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2024-11-22 01:56:45,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602407401] [2024-11-22 01:56:45,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:56:45,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 01:56:45,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 01:56:45,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2024-11-22 01:56:45,725 INFO L87 Difference]: Start difference. First operand 237025 states and 399188 transitions. Second operand has 28 states, 26 states have (on average 10.0) internal successors, (260), 24 states have internal predecessors, (260), 9 states have call successors, (55), 8 states have call predecessors, (55), 12 states have return successors, (47), 11 states have call predecessors, (47), 9 states have call successors, (47) [2024-11-22 01:56:51,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []