./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product30.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 bcbcb0270b2ee5ae38e5dd3a933d2995b5c0488c9590f16a6543c0c656cfb023 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:57:54,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:57:54,750 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:57:54,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:57:54,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:57:54,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:57:54,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:57:54,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:57:54,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:57:54,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:57:54,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:57:54,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:57:54,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:57:54,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:57:54,784 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:57:54,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:57:54,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:57:54,784 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:57:54,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:57:54,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:57:54,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:57:54,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:57:54,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:57:54,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:57:54,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:57:54,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:57:54,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:57:54,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:57:54,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:57:54,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:57:54,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:57:54,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:57:54,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:57:54,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:57:54,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:57:54,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:57:54,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:57:54,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:57:54,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:57:54,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:57:54,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:57:54,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:57:54,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcbcb0270b2ee5ae38e5dd3a933d2995b5c0488c9590f16a6543c0c656cfb023 [2024-10-14 02:57:55,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:57:55,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:57:55,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:57:55,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:57:55,062 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:57:55,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c [2024-10-14 02:57:56,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:57:56,586 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:57:56,586 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c [2024-10-14 02:57:56,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08f0eedc5/e8111e62a9b64bdfb1c3a1f2cad2324a/FLAGb9ef973c7 [2024-10-14 02:57:56,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08f0eedc5/e8111e62a9b64bdfb1c3a1f2cad2324a [2024-10-14 02:57:56,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:57:56,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:57:56,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:57:56,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:57:56,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:57:56,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:57:56" (1/1) ... [2024-10-14 02:57:56,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3882ed8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:56, skipping insertion in model container [2024-10-14 02:57:56,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:57:56" (1/1) ... [2024-10-14 02:57:56,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:57:56,989 WARN L248 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_product30.cil.c[5243,5256] [2024-10-14 02:57:57,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:57:57,261 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:57:57,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-10-14 02:57:57,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [208] [2024-10-14 02:57:57,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [217] [2024-10-14 02:57:57,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [619] [2024-10-14 02:57:57,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [985] [2024-10-14 02:57:57,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1288] [2024-10-14 02:57:57,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1504] [2024-10-14 02:57:57,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1539] [2024-10-14 02:57:57,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [1903] [2024-10-14 02:57:57,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1961] [2024-10-14 02:57:57,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3028] [2024-10-14 02:57:57,290 WARN L248 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_product30.cil.c[5243,5256] [2024-10-14 02:57:57,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:57:57,367 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:57:57,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57 WrapperNode [2024-10-14 02:57:57,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:57:57,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:57:57,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:57:57,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:57:57,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,435 INFO L138 Inliner]: procedures = 132, calls = 211, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 943 [2024-10-14 02:57:57,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:57:57,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:57:57,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:57:57,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:57:57,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,473 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]. [2024-10-14 02:57:57,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:57:57,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:57:57,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:57:57,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:57:57,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (1/1) ... [2024-10-14 02:57:57,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:57:57,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:57,554 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) [2024-10-14 02:57:57,556 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 [2024-10-14 02:57:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-14 02:57:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-14 02:57:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-14 02:57:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-14 02:57:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-14 02:57:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-14 02:57:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 02:57:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 02:57:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 02:57:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 02:57:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 02:57:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 02:57:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 02:57:57,597 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 02:57:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-14 02:57:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-14 02:57:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-14 02:57:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-14 02:57:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 02:57:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 02:57:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 02:57:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 02:57:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 02:57:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 02:57:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:57:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-14 02:57:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-14 02:57:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-14 02:57:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-14 02:57:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 02:57:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 02:57:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-14 02:57:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-14 02:57:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 02:57:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 02:57:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 02:57:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 02:57:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-14 02:57:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-14 02:57:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 02:57:57,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 02:57:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-14 02:57:57,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-14 02:57:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 02:57:57,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 02:57:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-14 02:57:57,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-14 02:57:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:57:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:57:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:57:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:57:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 02:57:57,602 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 02:57:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:57:57,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:57:57,785 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:57:57,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:57:58,474 INFO L? ?]: Removed 436 outVars from TransFormulas that were not future-live. [2024-10-14 02:57:58,475 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:57:58,549 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:57:58,549 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:57:58,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:57:58 BoogieIcfgContainer [2024-10-14 02:57:58,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:57:58,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:57:58,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:57:58,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:57:58,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:57:56" (1/3) ... [2024-10-14 02:57:58,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa20107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:57:58, skipping insertion in model container [2024-10-14 02:57:58,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:57:57" (2/3) ... [2024-10-14 02:57:58,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa20107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:57:58, skipping insertion in model container [2024-10-14 02:57:58,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:57:58" (3/3) ... [2024-10-14 02:57:58,556 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product30.cil.c [2024-10-14 02:57:58,585 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:57:58,585 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:57:58,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:57:58,670 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;@5ebd5e26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:57:58,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:57:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 330 states, 246 states have (on average 1.5691056910569106) internal successors, (386), 252 states have internal predecessors, (386), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 02:57:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 02:57:58,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:58,696 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] [2024-10-14 02:57:58,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:57:58,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:57:58,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1424803274, now seen corresponding path program 1 times [2024-10-14 02:57:58,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:57:58,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556233928] [2024-10-14 02:57:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:58,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:57:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:57:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:57:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:57:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:57:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:57:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:57:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 02:57:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 02:57:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:57:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:57:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:57:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:57:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:57:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:57:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:57:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:57:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:57:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,429 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-14 02:57:59,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:57:59,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556233928] [2024-10-14 02:57:59,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556233928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:57:59,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917509930] [2024-10-14 02:57:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:57:59,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:57:59,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:57:59,433 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) [2024-10-14 02:57:59,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:57:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:57:59,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 02:57:59,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:57:59,736 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 02:57:59,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:57:59,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917509930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:57:59,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:57:59,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-14 02:57:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332859286] [2024-10-14 02:57:59,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:57:59,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 02:57:59,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:57:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 02:57:59,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:57:59,773 INFO L87 Difference]: Start difference. First operand has 330 states, 246 states have (on average 1.5691056910569106) internal successors, (386), 252 states have internal predecessors, (386), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:57:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:57:59,830 INFO L93 Difference]: Finished difference Result 514 states and 767 transitions. [2024-10-14 02:57:59,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 02:57:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123 [2024-10-14 02:57:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:57:59,843 INFO L225 Difference]: With dead ends: 514 [2024-10-14 02:57:59,843 INFO L226 Difference]: Without dead ends: 326 [2024-10-14 02:57:59,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:57:59,849 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:57:59,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 482 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:57:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-10-14 02:57:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-10-14 02:57:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 244 states have (on average 1.5532786885245902) internal successors, (379), 248 states have internal predecessors, (379), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-14 02:57:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 492 transitions. [2024-10-14 02:57:59,900 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 492 transitions. Word has length 123 [2024-10-14 02:57:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:57:59,901 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 492 transitions. [2024-10-14 02:57:59,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:57:59,902 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 492 transitions. [2024-10-14 02:57:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 02:57:59,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:57:59,909 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] [2024-10-14 02:57:59,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:00,110 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 [2024-10-14 02:58:00,110 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:00,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:00,111 INFO L85 PathProgramCache]: Analyzing trace with hash -187869655, now seen corresponding path program 1 times [2024-10-14 02:58:00,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:00,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739401142] [2024-10-14 02:58:00,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:00,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 02:58:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:58:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:58:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:58:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:58:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:58:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:58:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:58:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:58:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:58:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:58:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-14 02:58:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739401142] [2024-10-14 02:58:00,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739401142] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:00,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273513172] [2024-10-14 02:58:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:00,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:00,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:00,422 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) [2024-10-14 02:58:00,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:58:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:00,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 02:58:00,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 02:58:00,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:00,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273513172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:00,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:00,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:58:00,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998319874] [2024-10-14 02:58:00,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:00,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:58:00,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:00,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:58:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:00,699 INFO L87 Difference]: Start difference. First operand 326 states and 492 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:00,766 INFO L93 Difference]: Finished difference Result 509 states and 750 transitions. [2024-10-14 02:58:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:58:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 124 [2024-10-14 02:58:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:00,769 INFO L225 Difference]: With dead ends: 509 [2024-10-14 02:58:00,769 INFO L226 Difference]: Without dead ends: 328 [2024-10-14 02:58:00,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:00,772 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:00,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 957 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:58:00,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-14 02:58:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-10-14 02:58:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 246 states have (on average 1.548780487804878) internal successors, (381), 250 states have internal predecessors, (381), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-14 02:58:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 494 transitions. [2024-10-14 02:58:00,790 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 494 transitions. Word has length 124 [2024-10-14 02:58:00,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:00,790 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 494 transitions. [2024-10-14 02:58:00,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:00,790 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 494 transitions. [2024-10-14 02:58:00,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 02:58:00,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:00,793 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:58:00,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 02:58:00,993 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 [2024-10-14 02:58:00,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:00,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:00,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1077514116, now seen corresponding path program 1 times [2024-10-14 02:58:00,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:00,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024179115] [2024-10-14 02:58:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 02:58:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:58:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:58:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:58:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:58:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:58:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:58:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:58:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:58:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:01,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:01,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024179115] [2024-10-14 02:58:01,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024179115] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:01,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593572434] [2024-10-14 02:58:01,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:01,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:01,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:01,246 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) [2024-10-14 02:58:01,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:58:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:58:01,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 02:58:01,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:01,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593572434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:01,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:01,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 02:58:01,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19645473] [2024-10-14 02:58:01,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:01,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:58:01,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:01,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:58:01,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:01,546 INFO L87 Difference]: Start difference. First operand 328 states and 494 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:01,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:01,604 INFO L93 Difference]: Finished difference Result 686 states and 1047 transitions. [2024-10-14 02:58:01,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:58:01,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-10-14 02:58:01,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:01,607 INFO L225 Difference]: With dead ends: 686 [2024-10-14 02:58:01,608 INFO L226 Difference]: Without dead ends: 380 [2024-10-14 02:58:01,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:58:01,612 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 102 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:01,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 923 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:58:01,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-14 02:58:01,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 375. [2024-10-14 02:58:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 282 states have (on average 1.5638297872340425) internal successors, (441), 286 states have internal predecessors, (441), 69 states have call successors, (69), 24 states have call predecessors, (69), 23 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-14 02:58:01,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 576 transitions. [2024-10-14 02:58:01,652 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 576 transitions. Word has length 131 [2024-10-14 02:58:01,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:01,652 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 576 transitions. [2024-10-14 02:58:01,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:01,653 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 576 transitions. [2024-10-14 02:58:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 02:58:01,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:01,658 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:58:01,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:01,858 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 [2024-10-14 02:58:01,858 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:01,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:01,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1598864143, now seen corresponding path program 1 times [2024-10-14 02:58:01,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:01,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201606872] [2024-10-14 02:58:01,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:01,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:58:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:01,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:58:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:58:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 02:58:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:58:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:58:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:58:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:58:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:58:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:58:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:58:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:58:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:58:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:02,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:02,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201606872] [2024-10-14 02:58:02,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201606872] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:02,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984783505] [2024-10-14 02:58:02,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:02,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:02,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:02,042 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) [2024-10-14 02:58:02,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 02:58:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 02:58:02,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:58:02,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:02,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984783505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:02,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:02,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-14 02:58:02,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616163730] [2024-10-14 02:58:02,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:02,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:58:02,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:02,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:58:02,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:02,359 INFO L87 Difference]: Start difference. First operand 375 states and 576 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:02,443 INFO L93 Difference]: Finished difference Result 745 states and 1146 transitions. [2024-10-14 02:58:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:58:02,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 132 [2024-10-14 02:58:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:02,445 INFO L225 Difference]: With dead ends: 745 [2024-10-14 02:58:02,445 INFO L226 Difference]: Without dead ends: 377 [2024-10-14 02:58:02,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:02,449 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 2 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:02,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1873 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:58:02,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-10-14 02:58:02,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2024-10-14 02:58:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 283 states have (on average 1.5618374558303887) internal successors, (442), 288 states have internal predecessors, (442), 69 states have call successors, (69), 24 states have call predecessors, (69), 24 states have return successors, (68), 66 states have call predecessors, (68), 66 states have call successors, (68) [2024-10-14 02:58:02,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 579 transitions. [2024-10-14 02:58:02,472 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 579 transitions. Word has length 132 [2024-10-14 02:58:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:02,473 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 579 transitions. [2024-10-14 02:58:02,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 579 transitions. [2024-10-14 02:58:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 02:58:02,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:02,476 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] [2024-10-14 02:58:02,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:02,676 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 [2024-10-14 02:58:02,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:02,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1588982417, now seen corresponding path program 1 times [2024-10-14 02:58:02,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:02,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560889753] [2024-10-14 02:58:02,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:02,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:58:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 02:58:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:58:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:58:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:58:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:58:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:58:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:58:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:58:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:58:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 02:58:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 02:58:02,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:02,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560889753] [2024-10-14 02:58:02,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560889753] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:02,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976940919] [2024-10-14 02:58:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:02,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:02,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:02,937 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) [2024-10-14 02:58:02,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 02:58:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 02:58:03,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:58:03,208 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:58:03,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976940919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:03,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:58:03,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-14 02:58:03,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995083340] [2024-10-14 02:58:03,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:03,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:58:03,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:03,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:58:03,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:58:03,209 INFO L87 Difference]: Start difference. First operand 377 states and 579 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:03,278 INFO L93 Difference]: Finished difference Result 747 states and 1151 transitions. [2024-10-14 02:58:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:58:03,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-10-14 02:58:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:03,281 INFO L225 Difference]: With dead ends: 747 [2024-10-14 02:58:03,281 INFO L226 Difference]: Without dead ends: 379 [2024-10-14 02:58:03,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:58:03,282 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 2 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:03,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1859 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:58:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-10-14 02:58:03,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-10-14 02:58:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 284 states have (on average 1.5598591549295775) internal successors, (443), 290 states have internal predecessors, (443), 69 states have call successors, (69), 24 states have call predecessors, (69), 25 states have return successors, (73), 66 states have call predecessors, (73), 66 states have call successors, (73) [2024-10-14 02:58:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-10-14 02:58:03,316 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 133 [2024-10-14 02:58:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:03,316 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-10-14 02:58:03,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:03,317 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-10-14 02:58:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 02:58:03,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:03,318 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] [2024-10-14 02:58:03,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 02:58:03,519 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 [2024-10-14 02:58:03,519 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:03,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash -556846815, now seen corresponding path program 1 times [2024-10-14 02:58:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:03,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240426358] [2024-10-14 02:58:03,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 02:58:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:58:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:58:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:58:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:58:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:58:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:58:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:58:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:58:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:58:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 02:58:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:03,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:03,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240426358] [2024-10-14 02:58:03,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240426358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:03,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:03,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:58:03,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472286602] [2024-10-14 02:58:03,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:03,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:58:03,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:03,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:58:03,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:58:03,676 INFO L87 Difference]: Start difference. First operand 379 states and 585 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:05,207 INFO L93 Difference]: Finished difference Result 832 states and 1298 transitions. [2024-10-14 02:58:05,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:58:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-10-14 02:58:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:05,211 INFO L225 Difference]: With dead ends: 832 [2024-10-14 02:58:05,211 INFO L226 Difference]: Without dead ends: 472 [2024-10-14 02:58:05,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:58:05,212 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1058 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:05,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 968 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 02:58:05,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-14 02:58:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 379. [2024-10-14 02:58:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 284 states have (on average 1.5598591549295775) internal successors, (443), 290 states have internal predecessors, (443), 69 states have call successors, (69), 24 states have call predecessors, (69), 25 states have return successors, (72), 66 states have call predecessors, (72), 66 states have call successors, (72) [2024-10-14 02:58:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 584 transitions. [2024-10-14 02:58:05,242 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 584 transitions. Word has length 134 [2024-10-14 02:58:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:05,242 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 584 transitions. [2024-10-14 02:58:05,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 584 transitions. [2024-10-14 02:58:05,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 02:58:05,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:05,244 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] [2024-10-14 02:58:05,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 02:58:05,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:05,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1957553629, now seen corresponding path program 2 times [2024-10-14 02:58:05,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:05,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143923433] [2024-10-14 02:58:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:05,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 02:58:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:58:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 02:58:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:58:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:58:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:58:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:58:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:58:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:58:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:58:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:58:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 02:58:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:05,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:05,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143923433] [2024-10-14 02:58:05,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143923433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:05,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:05,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 02:58:05,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915755649] [2024-10-14 02:58:05,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:05,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 02:58:05,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:05,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 02:58:05,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:58:05,443 INFO L87 Difference]: Start difference. First operand 379 states and 584 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:06,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:06,973 INFO L93 Difference]: Finished difference Result 834 states and 1301 transitions. [2024-10-14 02:58:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 02:58:06,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-10-14 02:58:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:06,976 INFO L225 Difference]: With dead ends: 834 [2024-10-14 02:58:06,976 INFO L226 Difference]: Without dead ends: 474 [2024-10-14 02:58:06,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 02:58:06,977 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1054 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:06,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 968 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 02:58:06,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-14 02:58:07,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 381. [2024-10-14 02:58:07,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 285 states have (on average 1.5578947368421052) internal successors, (444), 292 states have internal predecessors, (444), 69 states have call successors, (69), 24 states have call predecessors, (69), 26 states have return successors, (74), 66 states have call predecessors, (74), 66 states have call successors, (74) [2024-10-14 02:58:07,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 587 transitions. [2024-10-14 02:58:07,007 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 587 transitions. Word has length 135 [2024-10-14 02:58:07,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:07,007 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 587 transitions. [2024-10-14 02:58:07,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-14 02:58:07,007 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 587 transitions. [2024-10-14 02:58:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 02:58:07,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:07,009 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] [2024-10-14 02:58:07,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 02:58:07,009 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:07,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1043443132, now seen corresponding path program 1 times [2024-10-14 02:58:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851171949] [2024-10-14 02:58:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:58:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:58:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:58:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:58:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:58:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:58:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:58:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:58:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:58:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 02:58:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 02:58:07,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:07,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851171949] [2024-10-14 02:58:07,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851171949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:07,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:07,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:58:07,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372271558] [2024-10-14 02:58:07,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:07,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:58:07,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:58:07,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:07,313 INFO L87 Difference]: Start difference. First operand 381 states and 587 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-14 02:58:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:09,501 INFO L93 Difference]: Finished difference Result 832 states and 1296 transitions. [2024-10-14 02:58:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:58:09,501 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 136 [2024-10-14 02:58:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:09,504 INFO L225 Difference]: With dead ends: 832 [2024-10-14 02:58:09,504 INFO L226 Difference]: Without dead ends: 474 [2024-10-14 02:58:09,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:58:09,508 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1058 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3814 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 4187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 3814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:09,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1343 Invalid, 4187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 3814 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 02:58:09,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-14 02:58:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 381. [2024-10-14 02:58:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 285 states have (on average 1.5578947368421052) internal successors, (444), 292 states have internal predecessors, (444), 69 states have call successors, (69), 24 states have call predecessors, (69), 26 states have return successors, (73), 66 states have call predecessors, (73), 66 states have call successors, (73) [2024-10-14 02:58:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 586 transitions. [2024-10-14 02:58:09,532 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 586 transitions. Word has length 136 [2024-10-14 02:58:09,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:09,533 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 586 transitions. [2024-10-14 02:58:09,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-14 02:58:09,533 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 586 transitions. [2024-10-14 02:58:09,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 02:58:09,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:09,535 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] [2024-10-14 02:58:09,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:58:09,535 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:09,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1325440732, now seen corresponding path program 2 times [2024-10-14 02:58:09,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:09,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222129281] [2024-10-14 02:58:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:09,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 02:58:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:58:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:58:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:58:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:58:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:58:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:58:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:58:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:58:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 02:58:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 02:58:09,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:09,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222129281] [2024-10-14 02:58:09,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222129281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:09,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:09,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 02:58:09,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680844004] [2024-10-14 02:58:09,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 02:58:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 02:58:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 02:58:09,735 INFO L87 Difference]: Start difference. First operand 381 states and 586 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-14 02:58:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:11,689 INFO L93 Difference]: Finished difference Result 834 states and 1302 transitions. [2024-10-14 02:58:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 02:58:11,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 137 [2024-10-14 02:58:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:11,692 INFO L225 Difference]: With dead ends: 834 [2024-10-14 02:58:11,692 INFO L226 Difference]: Without dead ends: 476 [2024-10-14 02:58:11,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 02:58:11,693 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1054 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 4223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:11,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1344 Invalid, 4223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 3850 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 02:58:11,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-10-14 02:58:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 383. [2024-10-14 02:58:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 286 states have (on average 1.555944055944056) internal successors, (445), 294 states have internal predecessors, (445), 69 states have call successors, (69), 24 states have call predecessors, (69), 27 states have return successors, (78), 66 states have call predecessors, (78), 66 states have call successors, (78) [2024-10-14 02:58:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 592 transitions. [2024-10-14 02:58:11,713 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 592 transitions. Word has length 137 [2024-10-14 02:58:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:11,713 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 592 transitions. [2024-10-14 02:58:11,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-14 02:58:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 592 transitions. [2024-10-14 02:58:11,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 02:58:11,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:11,715 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] [2024-10-14 02:58:11,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:58:11,715 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:11,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:11,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1006390871, now seen corresponding path program 1 times [2024-10-14 02:58:11,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:11,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669872800] [2024-10-14 02:58:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:11,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 02:58:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:58:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:58:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:58:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:58:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:58:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:58:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:58:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:58:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 02:58:11,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669872800] [2024-10-14 02:58:11,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669872800] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:11,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260623544] [2024-10-14 02:58:11,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:11,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:11,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:11,945 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) [2024-10-14 02:58:11,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 02:58:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:12,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:58:12,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:12,214 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:12,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:58:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:12,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260623544] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:58:12,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:58:12,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-14 02:58:12,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506008978] [2024-10-14 02:58:12,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:58:12,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 02:58:12,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 02:58:12,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-14 02:58:12,299 INFO L87 Difference]: Start difference. First operand 383 states and 592 transitions. Second operand has 15 states, 14 states have (on average 9.571428571428571) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-14 02:58:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:14,448 INFO L93 Difference]: Finished difference Result 1163 states and 1913 transitions. [2024-10-14 02:58:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 02:58:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.571428571428571) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 138 [2024-10-14 02:58:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:14,452 INFO L225 Difference]: With dead ends: 1163 [2024-10-14 02:58:14,453 INFO L226 Difference]: Without dead ends: 806 [2024-10-14 02:58:14,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-14 02:58:14,454 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 2291 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 4436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 3706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:14,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 1525 Invalid, 4436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 02:58:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-10-14 02:58:14,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 698. [2024-10-14 02:58:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 537 states have (on average 1.6070763500931098) internal successors, (863), 545 states have internal predecessors, (863), 133 states have call successors, (133), 24 states have call predecessors, (133), 27 states have return successors, (152), 130 states have call predecessors, (152), 130 states have call successors, (152) [2024-10-14 02:58:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1148 transitions. [2024-10-14 02:58:14,484 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1148 transitions. Word has length 138 [2024-10-14 02:58:14,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:14,484 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1148 transitions. [2024-10-14 02:58:14,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.571428571428571) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-14 02:58:14,484 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1148 transitions. [2024-10-14 02:58:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 02:58:14,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:14,487 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] [2024-10-14 02:58:14,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 02:58:14,688 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 [2024-10-14 02:58:14,689 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:14,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:14,689 INFO L85 PathProgramCache]: Analyzing trace with hash -771800038, now seen corresponding path program 1 times [2024-10-14 02:58:14,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:14,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115458848] [2024-10-14 02:58:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:14,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:58:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:58:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:58:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:58:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:58:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:58:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:58:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:58:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:58:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 02:58:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 02:58:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:14,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:14,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115458848] [2024-10-14 02:58:14,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115458848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:14,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:14,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:14,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594762113] [2024-10-14 02:58:14,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:14,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:14,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:14,792 INFO L87 Difference]: Start difference. First operand 698 states and 1148 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:15,914 INFO L93 Difference]: Finished difference Result 1718 states and 2902 transitions. [2024-10-14 02:58:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:15,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-10-14 02:58:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:15,920 INFO L225 Difference]: With dead ends: 1718 [2024-10-14 02:58:15,921 INFO L226 Difference]: Without dead ends: 1088 [2024-10-14 02:58:15,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:15,927 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1152 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:15,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 735 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:15,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-10-14 02:58:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 990. [2024-10-14 02:58:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 765 states have (on average 1.6209150326797386) internal successors, (1240), 773 states have internal predecessors, (1240), 197 states have call successors, (197), 24 states have call predecessors, (197), 27 states have return successors, (226), 194 states have call predecessors, (226), 194 states have call successors, (226) [2024-10-14 02:58:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1663 transitions. [2024-10-14 02:58:15,969 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1663 transitions. Word has length 142 [2024-10-14 02:58:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:15,969 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1663 transitions. [2024-10-14 02:58:15,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1663 transitions. [2024-10-14 02:58:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 02:58:15,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:15,974 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] [2024-10-14 02:58:15,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:58:15,974 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:15,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:15,974 INFO L85 PathProgramCache]: Analyzing trace with hash 844378518, now seen corresponding path program 1 times [2024-10-14 02:58:15,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:15,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346230967] [2024-10-14 02:58:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:15,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:58:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:58:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:58:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:58:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:58:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:58:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:58:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:58:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 02:58:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 02:58:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:16,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:16,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346230967] [2024-10-14 02:58:16,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346230967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:16,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:16,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413695093] [2024-10-14 02:58:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:16,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:16,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:16,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:16,086 INFO L87 Difference]: Start difference. First operand 990 states and 1663 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:17,268 INFO L93 Difference]: Finished difference Result 2435 states and 4159 transitions. [2024-10-14 02:58:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:17,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-10-14 02:58:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:17,276 INFO L225 Difference]: With dead ends: 2435 [2024-10-14 02:58:17,277 INFO L226 Difference]: Without dead ends: 1563 [2024-10-14 02:58:17,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:17,281 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1154 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:17,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 714 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-10-14 02:58:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1465. [2024-10-14 02:58:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1145 states have (on average 1.6279475982532752) internal successors, (1864), 1153 states have internal predecessors, (1864), 292 states have call successors, (292), 24 states have call predecessors, (292), 27 states have return successors, (321), 289 states have call predecessors, (321), 289 states have call successors, (321) [2024-10-14 02:58:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2477 transitions. [2024-10-14 02:58:17,344 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2477 transitions. Word has length 143 [2024-10-14 02:58:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:17,344 INFO L471 AbstractCegarLoop]: Abstraction has 1465 states and 2477 transitions. [2024-10-14 02:58:17,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2477 transitions. [2024-10-14 02:58:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 02:58:17,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:17,352 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] [2024-10-14 02:58:17,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 02:58:17,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:17,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:17,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1099648652, now seen corresponding path program 1 times [2024-10-14 02:58:17,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:17,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306143364] [2024-10-14 02:58:17,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:17,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:58:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:58:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:58:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:58:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:58:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 02:58:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:58:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:17,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:17,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306143364] [2024-10-14 02:58:17,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306143364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:17,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:17,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:17,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269293136] [2024-10-14 02:58:17,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:17,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:17,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:17,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:17,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:17,451 INFO L87 Difference]: Start difference. First operand 1465 states and 2477 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:18,668 INFO L93 Difference]: Finished difference Result 3497 states and 6037 transitions. [2024-10-14 02:58:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-10-14 02:58:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:18,679 INFO L225 Difference]: With dead ends: 3497 [2024-10-14 02:58:18,679 INFO L226 Difference]: Without dead ends: 2278 [2024-10-14 02:58:18,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:18,684 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1149 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:18,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 701 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2024-10-14 02:58:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2180. [2024-10-14 02:58:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 1737 states have (on average 1.6338514680483593) internal successors, (2838), 1745 states have internal predecessors, (2838), 415 states have call successors, (415), 24 states have call predecessors, (415), 27 states have return successors, (460), 412 states have call predecessors, (460), 412 states have call successors, (460) [2024-10-14 02:58:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3713 transitions. [2024-10-14 02:58:18,760 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3713 transitions. Word has length 144 [2024-10-14 02:58:18,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:18,761 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3713 transitions. [2024-10-14 02:58:18,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:18,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3713 transitions. [2024-10-14 02:58:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 02:58:18,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:18,770 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] [2024-10-14 02:58:18,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 02:58:18,770 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:18,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:18,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1354097045, now seen corresponding path program 1 times [2024-10-14 02:58:18,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:18,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728607194] [2024-10-14 02:58:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:18,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:58:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:58:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:58:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:58:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:58:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:58:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:58:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:58:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:58:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 02:58:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 02:58:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:18,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:18,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728607194] [2024-10-14 02:58:18,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728607194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:18,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:18,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403410408] [2024-10-14 02:58:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:18,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:18,860 INFO L87 Difference]: Start difference. First operand 2180 states and 3713 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:20,035 INFO L93 Difference]: Finished difference Result 5139 states and 8950 transitions. [2024-10-14 02:58:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:20,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2024-10-14 02:58:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:20,051 INFO L225 Difference]: With dead ends: 5139 [2024-10-14 02:58:20,051 INFO L226 Difference]: Without dead ends: 3414 [2024-10-14 02:58:20,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:20,058 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1146 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:20,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 705 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:58:20,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2024-10-14 02:58:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3316. [2024-10-14 02:58:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2694 states have (on average 1.637713437268003) internal successors, (4412), 2702 states have internal predecessors, (4412), 594 states have call successors, (594), 24 states have call predecessors, (594), 27 states have return successors, (665), 591 states have call predecessors, (665), 591 states have call successors, (665) [2024-10-14 02:58:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 5671 transitions. [2024-10-14 02:58:20,169 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 5671 transitions. Word has length 145 [2024-10-14 02:58:20,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:20,170 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 5671 transitions. [2024-10-14 02:58:20,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 5671 transitions. [2024-10-14 02:58:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 02:58:20,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:20,185 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] [2024-10-14 02:58:20,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 02:58:20,185 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:20,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:20,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1573589008, now seen corresponding path program 1 times [2024-10-14 02:58:20,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:20,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934747724] [2024-10-14 02:58:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:20,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:58:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:58:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:58:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:58:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:58:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:58:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:58:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:58:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 02:58:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 02:58:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:20,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:20,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934747724] [2024-10-14 02:58:20,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934747724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:20,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:20,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360147597] [2024-10-14 02:58:20,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:20,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:20,264 INFO L87 Difference]: Start difference. First operand 3316 states and 5671 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:21,469 INFO L93 Difference]: Finished difference Result 8094 states and 14148 transitions. [2024-10-14 02:58:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:21,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2024-10-14 02:58:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:21,494 INFO L225 Difference]: With dead ends: 8094 [2024-10-14 02:58:21,494 INFO L226 Difference]: Without dead ends: 5472 [2024-10-14 02:58:21,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:21,504 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1144 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:21,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 739 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2024-10-14 02:58:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5374. [2024-10-14 02:58:21,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5374 states, 4376 states have (on average 1.6304844606946984) internal successors, (7135), 4384 states have internal predecessors, (7135), 970 states have call successors, (970), 24 states have call predecessors, (970), 27 states have return successors, (1085), 967 states have call predecessors, (1085), 967 states have call successors, (1085) [2024-10-14 02:58:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 9190 transitions. [2024-10-14 02:58:21,747 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 9190 transitions. Word has length 146 [2024-10-14 02:58:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:21,748 INFO L471 AbstractCegarLoop]: Abstraction has 5374 states and 9190 transitions. [2024-10-14 02:58:21,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 9190 transitions. [2024-10-14 02:58:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 02:58:21,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:21,765 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] [2024-10-14 02:58:21,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 02:58:21,765 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:21,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1429294063, now seen corresponding path program 1 times [2024-10-14 02:58:21,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:21,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579792275] [2024-10-14 02:58:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:21,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:58:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:58:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:58:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:58:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:58:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:58:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 02:58:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 02:58:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 02:58:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-14 02:58:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:21,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579792275] [2024-10-14 02:58:21,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579792275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:21,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:21,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731801341] [2024-10-14 02:58:21,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:21,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:21,847 INFO L87 Difference]: Start difference. First operand 5374 states and 9190 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:23,199 INFO L93 Difference]: Finished difference Result 13299 states and 23232 transitions. [2024-10-14 02:58:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:23,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-10-14 02:58:23,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:23,239 INFO L225 Difference]: With dead ends: 13299 [2024-10-14 02:58:23,240 INFO L226 Difference]: Without dead ends: 9005 [2024-10-14 02:58:23,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:23,255 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1145 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:23,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 715 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:23,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9005 states. [2024-10-14 02:58:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9005 to 8907. [2024-10-14 02:58:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8907 states, 7303 states have (on average 1.6283719019580993) internal successors, (11892), 7311 states have internal predecessors, (11892), 1576 states have call successors, (1576), 24 states have call predecessors, (1576), 27 states have return successors, (1769), 1573 states have call predecessors, (1769), 1573 states have call successors, (1769) [2024-10-14 02:58:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8907 states to 8907 states and 15237 transitions. [2024-10-14 02:58:23,585 INFO L78 Accepts]: Start accepts. Automaton has 8907 states and 15237 transitions. Word has length 147 [2024-10-14 02:58:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:23,588 INFO L471 AbstractCegarLoop]: Abstraction has 8907 states and 15237 transitions. [2024-10-14 02:58:23,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8907 states and 15237 transitions. [2024-10-14 02:58:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 02:58:23,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:23,615 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] [2024-10-14 02:58:23,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 02:58:23,615 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:23,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash -65895154, now seen corresponding path program 1 times [2024-10-14 02:58:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:23,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480306485] [2024-10-14 02:58:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:58:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:58:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:58:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:58:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:58:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:58:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:58:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 02:58:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 02:58:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 02:58:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 02:58:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:23,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:23,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480306485] [2024-10-14 02:58:23,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480306485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:23,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:23,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291999804] [2024-10-14 02:58:23,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:23,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:23,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:23,711 INFO L87 Difference]: Start difference. First operand 8907 states and 15237 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:25,154 INFO L93 Difference]: Finished difference Result 23071 states and 40261 transitions. [2024-10-14 02:58:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-10-14 02:58:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:25,211 INFO L225 Difference]: With dead ends: 23071 [2024-10-14 02:58:25,211 INFO L226 Difference]: Without dead ends: 15677 [2024-10-14 02:58:25,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:25,236 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1143 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:25,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 737 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15677 states. [2024-10-14 02:58:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15677 to 15579. [2024-10-14 02:58:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15579 states, 12772 states have (on average 1.6192452239273412) internal successors, (20681), 12780 states have internal predecessors, (20681), 2779 states have call successors, (2779), 24 states have call predecessors, (2779), 27 states have return successors, (3116), 2776 states have call predecessors, (3116), 2776 states have call successors, (3116) [2024-10-14 02:58:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15579 states to 15579 states and 26576 transitions. [2024-10-14 02:58:25,945 INFO L78 Accepts]: Start accepts. Automaton has 15579 states and 26576 transitions. Word has length 148 [2024-10-14 02:58:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:25,946 INFO L471 AbstractCegarLoop]: Abstraction has 15579 states and 26576 transitions. [2024-10-14 02:58:25,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 15579 states and 26576 transitions. [2024-10-14 02:58:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-14 02:58:25,992 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:25,992 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] [2024-10-14 02:58:25,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 02:58:25,993 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:25,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:25,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1925667952, now seen corresponding path program 1 times [2024-10-14 02:58:25,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:25,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059667358] [2024-10-14 02:58:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:25,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:58:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:58:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:58:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:58:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:58:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:58:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:58:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 02:58:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 02:58:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 02:58:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 02:58:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:26,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:26,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059667358] [2024-10-14 02:58:26,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059667358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:26,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:26,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:26,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552899777] [2024-10-14 02:58:26,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:26,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:26,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:26,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:26,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:26,127 INFO L87 Difference]: Start difference. First operand 15579 states and 26576 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:27,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:27,826 INFO L93 Difference]: Finished difference Result 41238 states and 71859 transitions. [2024-10-14 02:58:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2024-10-14 02:58:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:27,913 INFO L225 Difference]: With dead ends: 41238 [2024-10-14 02:58:27,914 INFO L226 Difference]: Without dead ends: 27792 [2024-10-14 02:58:27,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:27,948 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1141 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:27,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 703 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27792 states. [2024-10-14 02:58:28,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27792 to 27694. [2024-10-14 02:58:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27694 states, 22848 states have (on average 1.6153711484593838) internal successors, (36908), 22856 states have internal predecessors, (36908), 4818 states have call successors, (4818), 24 states have call predecessors, (4818), 27 states have return successors, (5429), 4815 states have call predecessors, (5429), 4815 states have call successors, (5429) [2024-10-14 02:58:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27694 states to 27694 states and 47155 transitions. [2024-10-14 02:58:28,891 INFO L78 Accepts]: Start accepts. Automaton has 27694 states and 47155 transitions. Word has length 149 [2024-10-14 02:58:28,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:28,891 INFO L471 AbstractCegarLoop]: Abstraction has 27694 states and 47155 transitions. [2024-10-14 02:58:28,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 27694 states and 47155 transitions. [2024-10-14 02:58:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 02:58:28,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:28,935 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] [2024-10-14 02:58:28,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 02:58:28,935 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:28,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:28,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2144601516, now seen corresponding path program 1 times [2024-10-14 02:58:28,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:28,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317572290] [2024-10-14 02:58:28,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:28,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:28,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:28,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:28,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:28,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:28,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:58:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:58:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:58:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:58:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:58:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:58:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:58:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 02:58:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 02:58:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 02:58:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 02:58:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:29,024 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:29,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:29,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317572290] [2024-10-14 02:58:29,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317572290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:29,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:29,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:29,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843892827] [2024-10-14 02:58:29,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:29,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:29,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:29,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:29,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:29,026 INFO L87 Difference]: Start difference. First operand 27694 states and 47155 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:31,429 INFO L93 Difference]: Finished difference Result 75430 states and 130653 transitions. [2024-10-14 02:58:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-10-14 02:58:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:31,586 INFO L225 Difference]: With dead ends: 75430 [2024-10-14 02:58:31,586 INFO L226 Difference]: Without dead ends: 50616 [2024-10-14 02:58:31,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:31,636 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1137 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:31,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 708 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:31,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50616 states. [2024-10-14 02:58:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50616 to 50518. [2024-10-14 02:58:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50518 states, 41957 states have (on average 1.6101246514288439) internal successors, (67556), 41965 states have internal predecessors, (67556), 8533 states have call successors, (8533), 24 states have call predecessors, (8533), 27 states have return successors, (9676), 8530 states have call predecessors, (9676), 8530 states have call successors, (9676) [2024-10-14 02:58:33,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50518 states to 50518 states and 85765 transitions. [2024-10-14 02:58:33,560 INFO L78 Accepts]: Start accepts. Automaton has 50518 states and 85765 transitions. Word has length 150 [2024-10-14 02:58:33,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:33,560 INFO L471 AbstractCegarLoop]: Abstraction has 50518 states and 85765 transitions. [2024-10-14 02:58:33,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand 50518 states and 85765 transitions. [2024-10-14 02:58:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 02:58:33,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:33,643 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] [2024-10-14 02:58:33,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 02:58:33,644 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:33,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:33,644 INFO L85 PathProgramCache]: Analyzing trace with hash 549001616, now seen corresponding path program 1 times [2024-10-14 02:58:33,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:33,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981609711] [2024-10-14 02:58:33,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:33,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:58:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:58:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:58:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:58:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:58:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:58:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:58:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 02:58:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 02:58:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 02:58:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 02:58:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-14 02:58:33,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:33,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981609711] [2024-10-14 02:58:33,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981609711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:58:33,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:58:33,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 02:58:33,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679158092] [2024-10-14 02:58:33,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:58:33,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 02:58:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:33,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 02:58:33,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 02:58:33,753 INFO L87 Difference]: Start difference. First operand 50518 states and 85765 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:58:37,093 INFO L93 Difference]: Finished difference Result 94177 states and 163559 transitions. [2024-10-14 02:58:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:58:37,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2024-10-14 02:58:37,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:58:37,430 INFO L225 Difference]: With dead ends: 94177 [2024-10-14 02:58:37,430 INFO L226 Difference]: Without dead ends: 93996 [2024-10-14 02:58:37,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:58:37,471 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1135 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:58:37,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 711 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 02:58:37,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93996 states. [2024-10-14 02:58:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93996 to 93898. [2024-10-14 02:58:40,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93898 states, 78538 states have (on average 1.603351243983804) internal successors, (125924), 78546 states have internal predecessors, (125924), 15332 states have call successors, (15332), 24 states have call predecessors, (15332), 27 states have return successors, (17521), 15329 states have call predecessors, (17521), 15329 states have call successors, (17521) [2024-10-14 02:58:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93898 states to 93898 states and 158777 transitions. [2024-10-14 02:58:41,182 INFO L78 Accepts]: Start accepts. Automaton has 93898 states and 158777 transitions. Word has length 151 [2024-10-14 02:58:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:58:41,183 INFO L471 AbstractCegarLoop]: Abstraction has 93898 states and 158777 transitions. [2024-10-14 02:58:41,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 02:58:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 93898 states and 158777 transitions. [2024-10-14 02:58:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 02:58:41,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:58:41,673 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] [2024-10-14 02:58:41,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 02:58:41,674 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:58:41,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:58:41,678 INFO L85 PathProgramCache]: Analyzing trace with hash 468175309, now seen corresponding path program 1 times [2024-10-14 02:58:41,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:58:41,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032229074] [2024-10-14 02:58:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:41,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:58:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:58:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:58:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:58:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:58:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:58:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:58:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:58:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:58:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:58:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:58:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:58:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:58:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 02:58:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 02:58:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 02:58:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 02:58:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 02:58:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-14 02:58:42,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:58:42,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032229074] [2024-10-14 02:58:42,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032229074] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:58:42,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798682347] [2024-10-14 02:58:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:58:42,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:58:42,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:58:42,085 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) [2024-10-14 02:58:42,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 02:58:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:58:42,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 02:58:42,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:58:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 02:58:43,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:58:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-14 02:58:43,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798682347] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:58:43,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:58:43,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-10-14 02:58:43,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975692112] [2024-10-14 02:58:43,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:58:43,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 02:58:43,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:58:43,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 02:58:43,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2024-10-14 02:58:43,769 INFO L87 Difference]: Start difference. First operand 93898 states and 158777 transitions. Second operand has 32 states, 30 states have (on average 7.733333333333333) internal successors, (232), 24 states have internal predecessors, (232), 9 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44)