./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 a046e57d 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-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:29:40,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:29:40,588 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:29:40,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:29:40,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:29:40,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:29:40,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:29:40,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:29:40,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:29:40,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:29:40,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:29:40,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:29:40,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:29:40,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:29:40,624 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:29:40,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:29:40,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:29:40,626 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:29:40,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:29:40,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:29:40,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:29:40,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:29:40,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:29:40,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:29:40,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:29:40,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:29:40,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:29:40,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:29:40,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:29:40,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:29:40,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:29:40,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:29:40,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:29:40,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:29:40,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:29:40,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:29:40,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:29:40,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:29:40,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:29:40,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:29:40,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:29:40,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:29:40,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcbcb0270b2ee5ae38e5dd3a933d2995b5c0488c9590f16a6543c0c656cfb023 [2024-10-12 19:29:40,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:29:40,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:29:40,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:29:40,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:29:40,869 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:29:40,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c [2024-10-12 19:29:42,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:29:42,305 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:29:42,306 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product30.cil.c [2024-10-12 19:29:42,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dade28740/c7a1182d45cc467485e87199e46dc669/FLAG60564551e [2024-10-12 19:29:42,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dade28740/c7a1182d45cc467485e87199e46dc669 [2024-10-12 19:29:42,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:29:42,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:29:42,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:29:42,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:29:42,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:29:42,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:29:42" (1/1) ... [2024-10-12 19:29:42,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3976bd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:42, skipping insertion in model container [2024-10-12 19:29:42,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:29:42" (1/1) ... [2024-10-12 19:29:42,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:29:42,897 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] [2024-10-12 19:29:43,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:29:43,163 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:29:43,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-10-12 19:29:43,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [208] [2024-10-12 19:29:43,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [217] [2024-10-12 19:29:43,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [619] [2024-10-12 19:29:43,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [985] [2024-10-12 19:29:43,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1288] [2024-10-12 19:29:43,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1504] [2024-10-12 19:29:43,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1539] [2024-10-12 19:29:43,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [1903] [2024-10-12 19:29:43,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1961] [2024-10-12 19:29:43,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3028] [2024-10-12 19:29:43,186 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] [2024-10-12 19:29:43,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:29:43,290 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:29:43,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43 WrapperNode [2024-10-12 19:29:43,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:29:43,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:29:43,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:29:43,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:29:43,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,390 INFO L138 Inliner]: procedures = 132, calls = 211, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 943 [2024-10-12 19:29:43,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:29:43,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:29:43,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:29:43,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:29:43,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,429 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]. [2024-10-12 19:29:43,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:29:43,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:29:43,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:29:43,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:29:43,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (1/1) ... [2024-10-12 19:29:43,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:29:43,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:43,525 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) [2024-10-12 19:29:43,530 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 [2024-10-12 19:29:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-12 19:29:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-12 19:29:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-12 19:29:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-12 19:29:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-12 19:29:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-12 19:29:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-12 19:29:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-12 19:29:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-12 19:29:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-12 19:29:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-12 19:29:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-12 19:29:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-12 19:29:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-12 19:29:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-12 19:29:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-12 19:29:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-12 19:29:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-12 19:29:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-12 19:29:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-12 19:29:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-12 19:29:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-12 19:29:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-12 19:29:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:29:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:29:43,716 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:29:43,718 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:29:44,294 INFO L? ?]: Removed 436 outVars from TransFormulas that were not future-live. [2024-10-12 19:29:44,294 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:29:44,347 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:29:44,349 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:29:44,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:29:44 BoogieIcfgContainer [2024-10-12 19:29:44,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:29:44,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:29:44,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:29:44,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:29:44,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:29:42" (1/3) ... [2024-10-12 19:29:44,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2442ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:29:44, skipping insertion in model container [2024-10-12 19:29:44,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:29:43" (2/3) ... [2024-10-12 19:29:44,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2442ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:29:44, skipping insertion in model container [2024-10-12 19:29:44,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:29:44" (3/3) ... [2024-10-12 19:29:44,357 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product30.cil.c [2024-10-12 19:29:44,370 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:29:44,370 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:29:44,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:29:44,439 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;@731a3398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:29:44,440 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:29:44,444 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) [2024-10-12 19:29:44,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 19:29:44,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:44,463 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] [2024-10-12 19:29:44,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:44,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:44,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1424803274, now seen corresponding path program 1 times [2024-10-12 19:29:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:44,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503988166] [2024-10-12 19:29:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:44,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:44,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:44,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:44,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:29:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:29:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:29:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:29:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:29:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:29:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:29:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:29:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:29:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:29:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:29:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:29:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:29:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:29:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-12 19:29:45,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:45,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503988166] [2024-10-12 19:29:45,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503988166] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:29:45,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110507498] [2024-10-12 19:29:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:45,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:29:45,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:45,093 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) [2024-10-12 19:29:45,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:29:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:45,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:29:45,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:29:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-12 19:29:45,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:29:45,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110507498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:45,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:29:45,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-12 19:29:45,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944890552] [2024-10-12 19:29:45,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:45,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:29:45,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:45,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:29:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:29:45,421 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) [2024-10-12 19:29:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:45,506 INFO L93 Difference]: Finished difference Result 514 states and 767 transitions. [2024-10-12 19:29:45,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:29:45,509 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 [2024-10-12 19:29:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:45,521 INFO L225 Difference]: With dead ends: 514 [2024-10-12 19:29:45,522 INFO L226 Difference]: Without dead ends: 326 [2024-10-12 19:29:45,526 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 [2024-10-12 19:29:45,531 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 [2024-10-12 19:29:45,532 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] [2024-10-12 19:29:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-10-12 19:29:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2024-10-12 19:29:45,589 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) [2024-10-12 19:29:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 492 transitions. [2024-10-12 19:29:45,597 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 492 transitions. Word has length 123 [2024-10-12 19:29:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:45,599 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 492 transitions. [2024-10-12 19:29:45,600 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) [2024-10-12 19:29:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 492 transitions. [2024-10-12 19:29:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-12 19:29:45,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:45,606 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] [2024-10-12 19:29:45,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:29:45,806 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 [2024-10-12 19:29:45,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:45,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:45,808 INFO L85 PathProgramCache]: Analyzing trace with hash -187869655, now seen corresponding path program 1 times [2024-10-12 19:29:45,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:45,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138120954] [2024-10-12 19:29:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:45,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:29:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:29:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:29:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:29:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:29:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:29:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:29:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:29:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:29:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:29:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:29:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:29:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:29:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:29:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-12 19:29:46,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:46,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138120954] [2024-10-12 19:29:46,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138120954] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:29:46,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861642043] [2024-10-12 19:29:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:46,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:29:46,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:46,102 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) [2024-10-12 19:29:46,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:29:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 19:29:46,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:29:46,365 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-12 19:29:46,366 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:29:46,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861642043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:46,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:29:46,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:29:46,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159621145] [2024-10-12 19:29:46,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:46,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:29:46,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:46,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:29:46,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:29:46,369 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) [2024-10-12 19:29:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:46,420 INFO L93 Difference]: Finished difference Result 509 states and 750 transitions. [2024-10-12 19:29:46,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:29:46,421 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 [2024-10-12 19:29:46,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:46,423 INFO L225 Difference]: With dead ends: 509 [2024-10-12 19:29:46,423 INFO L226 Difference]: Without dead ends: 328 [2024-10-12 19:29:46,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:29:46,429 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 [2024-10-12 19:29:46,430 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] [2024-10-12 19:29:46,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-12 19:29:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-10-12 19:29:46,447 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) [2024-10-12 19:29:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 494 transitions. [2024-10-12 19:29:46,449 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 494 transitions. Word has length 124 [2024-10-12 19:29:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:46,450 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 494 transitions. [2024-10-12 19:29:46,450 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) [2024-10-12 19:29:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 494 transitions. [2024-10-12 19:29:46,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 19:29:46,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:46,452 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] [2024-10-12 19:29:46,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 19:29:46,652 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 [2024-10-12 19:29:46,653 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:46,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1077514116, now seen corresponding path program 1 times [2024-10-12 19:29:46,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:46,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209921667] [2024-10-12 19:29:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:46,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:29:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:29:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:29:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 19:29:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:29:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:29:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:29:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:29:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:29:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:29:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:29:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:29:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:29:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 19:29:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-12 19:29:46,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:46,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209921667] [2024-10-12 19:29:46,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209921667] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:29:46,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499739454] [2024-10-12 19:29:46,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:29:46,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:46,851 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) [2024-10-12 19:29:46,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 19:29:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:29:47,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:29:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-12 19:29:47,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:29:47,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499739454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:47,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:29:47,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:29:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728497186] [2024-10-12 19:29:47,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:47,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:29:47,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:29:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:29:47,100 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) [2024-10-12 19:29:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:47,149 INFO L93 Difference]: Finished difference Result 686 states and 1047 transitions. [2024-10-12 19:29:47,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:29:47,150 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 [2024-10-12 19:29:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:47,153 INFO L225 Difference]: With dead ends: 686 [2024-10-12 19:29:47,153 INFO L226 Difference]: Without dead ends: 380 [2024-10-12 19:29:47,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:29:47,162 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 [2024-10-12 19:29:47,162 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] [2024-10-12 19:29:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-12 19:29:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 375. [2024-10-12 19:29:47,184 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) [2024-10-12 19:29:47,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 576 transitions. [2024-10-12 19:29:47,187 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 576 transitions. Word has length 131 [2024-10-12 19:29:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:47,188 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 576 transitions. [2024-10-12 19:29:47,188 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) [2024-10-12 19:29:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 576 transitions. [2024-10-12 19:29:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-12 19:29:47,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:47,192 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] [2024-10-12 19:29:47,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 19:29:47,392 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 [2024-10-12 19:29:47,393 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:47,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1598864143, now seen corresponding path program 1 times [2024-10-12 19:29:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:47,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165358708] [2024-10-12 19:29:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:47,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:29:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:29:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:29:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:29:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:29:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:29:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:29:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:29:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:29:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:29:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:29:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:29:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-12 19:29:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 19:29:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-12 19:29:47,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:47,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165358708] [2024-10-12 19:29:47,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165358708] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:29:47,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428601633] [2024-10-12 19:29:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:47,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:29:47,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:47,569 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) [2024-10-12 19:29:47,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 19:29:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:47,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 19:29:47,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:29:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:29:47,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:29:47,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428601633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:47,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:29:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-12 19:29:47,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070658722] [2024-10-12 19:29:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:47,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:29:47,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:47,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:29:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:29:47,877 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) [2024-10-12 19:29:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:47,966 INFO L93 Difference]: Finished difference Result 745 states and 1146 transitions. [2024-10-12 19:29:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:29:47,967 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 [2024-10-12 19:29:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:47,969 INFO L225 Difference]: With dead ends: 745 [2024-10-12 19:29:47,969 INFO L226 Difference]: Without dead ends: 377 [2024-10-12 19:29:47,970 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 [2024-10-12 19:29:47,970 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 [2024-10-12 19:29:47,971 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] [2024-10-12 19:29:47,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-10-12 19:29:47,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2024-10-12 19:29:47,980 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) [2024-10-12 19:29:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 579 transitions. [2024-10-12 19:29:47,982 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 579 transitions. Word has length 132 [2024-10-12 19:29:47,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:47,982 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 579 transitions. [2024-10-12 19:29:47,983 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) [2024-10-12 19:29:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 579 transitions. [2024-10-12 19:29:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-12 19:29:47,984 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:47,985 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] [2024-10-12 19:29:47,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 19:29:48,185 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 [2024-10-12 19:29:48,185 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:48,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:48,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1588982417, now seen corresponding path program 1 times [2024-10-12 19:29:48,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:48,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233775207] [2024-10-12 19:29:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:48,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:29:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:29:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 19:29:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:29:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:29:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:29:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:29:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:29:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:29:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:29:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:29:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 19:29:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 19:29:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-12 19:29:48,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:48,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233775207] [2024-10-12 19:29:48,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233775207] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:29:48,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488146016] [2024-10-12 19:29:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:29:48,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:48,405 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) [2024-10-12 19:29:48,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 19:29:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:48,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:29:48,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:29:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:29:48,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:29:48,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488146016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:48,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:29:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-12 19:29:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133946163] [2024-10-12 19:29:48,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:48,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:29:48,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:29:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:29:48,694 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) [2024-10-12 19:29:48,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:48,770 INFO L93 Difference]: Finished difference Result 747 states and 1151 transitions. [2024-10-12 19:29:48,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:29:48,770 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 [2024-10-12 19:29:48,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:48,773 INFO L225 Difference]: With dead ends: 747 [2024-10-12 19:29:48,773 INFO L226 Difference]: Without dead ends: 379 [2024-10-12 19:29:48,774 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 [2024-10-12 19:29:48,774 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 [2024-10-12 19:29:48,774 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] [2024-10-12 19:29:48,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-10-12 19:29:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-10-12 19:29:48,785 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) [2024-10-12 19:29:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions. [2024-10-12 19:29:48,787 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 133 [2024-10-12 19:29:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:48,787 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 585 transitions. [2024-10-12 19:29:48,787 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) [2024-10-12 19:29:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions. [2024-10-12 19:29:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-12 19:29:48,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:48,789 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] [2024-10-12 19:29:48,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 19:29:48,990 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 [2024-10-12 19:29:48,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:48,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:48,990 INFO L85 PathProgramCache]: Analyzing trace with hash -556846815, now seen corresponding path program 1 times [2024-10-12 19:29:48,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:48,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133851391] [2024-10-12 19:29:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:48,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 19:29:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:29:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 19:29:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:29:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:29:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:29:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:29:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:29:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:29:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:29:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-12 19:29:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-12 19:29:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-12 19:29:49,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133851391] [2024-10-12 19:29:49,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133851391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:49,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:29:49,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:29:49,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746682199] [2024-10-12 19:29:49,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:49,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:29:49,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:49,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:29:49,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:29:49,176 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) [2024-10-12 19:29:50,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:50,749 INFO L93 Difference]: Finished difference Result 832 states and 1298 transitions. [2024-10-12 19:29:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:29:50,750 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 [2024-10-12 19:29:50,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:50,752 INFO L225 Difference]: With dead ends: 832 [2024-10-12 19:29:50,753 INFO L226 Difference]: Without dead ends: 472 [2024-10-12 19:29:50,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:29:50,754 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1058 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 19:29:50,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 968 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 19:29:50,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-10-12 19:29:50,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 379. [2024-10-12 19:29:50,778 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) [2024-10-12 19:29:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 584 transitions. [2024-10-12 19:29:50,780 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 584 transitions. Word has length 134 [2024-10-12 19:29:50,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:50,780 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 584 transitions. [2024-10-12 19:29:50,780 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) [2024-10-12 19:29:50,781 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 584 transitions. [2024-10-12 19:29:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-12 19:29:50,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:50,783 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] [2024-10-12 19:29:50,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:29:50,783 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:50,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1957553629, now seen corresponding path program 2 times [2024-10-12 19:29:50,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:50,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837420901] [2024-10-12 19:29:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-12 19:29:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:29:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 19:29:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:29:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:29:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:29:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:29:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:29:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:29:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 19:29:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-12 19:29:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 19:29:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-12 19:29:50,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:50,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837420901] [2024-10-12 19:29:50,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837420901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:50,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:29:50,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:29:50,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583809931] [2024-10-12 19:29:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:50,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:29:50,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:50,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:29:50,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:29:50,976 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) [2024-10-12 19:29:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:52,479 INFO L93 Difference]: Finished difference Result 834 states and 1301 transitions. [2024-10-12 19:29:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:29:52,479 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 [2024-10-12 19:29:52,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:52,482 INFO L225 Difference]: With dead ends: 834 [2024-10-12 19:29:52,482 INFO L226 Difference]: Without dead ends: 474 [2024-10-12 19:29:52,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:29:52,484 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1054 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:29:52,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 968 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 19:29:52,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-12 19:29:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 381. [2024-10-12 19:29:52,508 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) [2024-10-12 19:29:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 587 transitions. [2024-10-12 19:29:52,511 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 587 transitions. Word has length 135 [2024-10-12 19:29:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:52,511 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 587 transitions. [2024-10-12 19:29:52,512 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) [2024-10-12 19:29:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 587 transitions. [2024-10-12 19:29:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-12 19:29:52,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:52,513 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] [2024-10-12 19:29:52,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:29:52,514 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:52,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1043443132, now seen corresponding path program 1 times [2024-10-12 19:29:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:52,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558296160] [2024-10-12 19:29:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:29:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:29:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:29:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:29:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:29:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:29:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:29:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:29:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:29:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:29:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 19:29:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-12 19:29:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-12 19:29:52,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:52,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558296160] [2024-10-12 19:29:52,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558296160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:52,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:29:52,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:29:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137546325] [2024-10-12 19:29:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:52,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:29:52,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:52,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:29:52,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:29:52,726 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) [2024-10-12 19:29:54,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:54,633 INFO L93 Difference]: Finished difference Result 832 states and 1296 transitions. [2024-10-12 19:29:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:29:54,634 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 [2024-10-12 19:29:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:54,637 INFO L225 Difference]: With dead ends: 832 [2024-10-12 19:29:54,637 INFO L226 Difference]: Without dead ends: 474 [2024-10-12 19:29:54,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-12 19:29:54,638 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 1059 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 4164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:29:54,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1342 Invalid, 4164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 3789 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 19:29:54,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-12 19:29:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 381. [2024-10-12 19:29:54,668 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) [2024-10-12 19:29:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 586 transitions. [2024-10-12 19:29:54,671 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 586 transitions. Word has length 136 [2024-10-12 19:29:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:54,671 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 586 transitions. [2024-10-12 19:29:54,671 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) [2024-10-12 19:29:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 586 transitions. [2024-10-12 19:29:54,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-12 19:29:54,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:54,673 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 19:29:54,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:29:54,674 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:54,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:54,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1325440732, now seen corresponding path program 2 times [2024-10-12 19:29:54,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:54,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137337963] [2024-10-12 19:29:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:54,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:29:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:29:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:29:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:29:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:29:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:29:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:29:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:29:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:29:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:29:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 19:29:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 19:29:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-12 19:29:54,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:54,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137337963] [2024-10-12 19:29:54,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137337963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:54,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:29:54,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:29:54,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917656099] [2024-10-12 19:29:54,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:54,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:29:54,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:54,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:29:54,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:29:54,901 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) [2024-10-12 19:29:56,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:56,650 INFO L93 Difference]: Finished difference Result 834 states and 1302 transitions. [2024-10-12 19:29:56,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:29:56,650 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 [2024-10-12 19:29:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:56,653 INFO L225 Difference]: With dead ends: 834 [2024-10-12 19:29:56,653 INFO L226 Difference]: Without dead ends: 476 [2024-10-12 19:29:56,654 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 [2024-10-12 19:29:56,654 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1054 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3833 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 4207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 3833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:29:56,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1344 Invalid, 4207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 3833 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:29:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-10-12 19:29:56,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 383. [2024-10-12 19:29:56,675 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) [2024-10-12 19:29:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 592 transitions. [2024-10-12 19:29:56,677 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 592 transitions. Word has length 137 [2024-10-12 19:29:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:56,677 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 592 transitions. [2024-10-12 19:29:56,677 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) [2024-10-12 19:29:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 592 transitions. [2024-10-12 19:29:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-12 19:29:56,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:56,679 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] [2024-10-12 19:29:56,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:29:56,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:56,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:56,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1006390871, now seen corresponding path program 1 times [2024-10-12 19:29:56,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:56,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547671335] [2024-10-12 19:29:56,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:56,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:29:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:29:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:29:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:29:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:29:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:29:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:29:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:29:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:29:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:29:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 19:29:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-12 19:29:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-12 19:29:56,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:56,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547671335] [2024-10-12 19:29:56,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547671335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:29:56,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674857340] [2024-10-12 19:29:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:56,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:29:56,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:29:56,892 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) [2024-10-12 19:29:56,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 19:29:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:57,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:29:57,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:29:57,159 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:29:57,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:29:57,247 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:29:57,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674857340] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:29:57,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:29:57,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-12 19:29:57,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142887603] [2024-10-12 19:29:57,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:29:57,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:29:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:57,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:29:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:29:57,251 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) [2024-10-12 19:29:59,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:29:59,042 INFO L93 Difference]: Finished difference Result 1163 states and 1913 transitions. [2024-10-12 19:29:59,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 19:29:59,043 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 [2024-10-12 19:29:59,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:29:59,047 INFO L225 Difference]: With dead ends: 1163 [2024-10-12 19:29:59,047 INFO L226 Difference]: Without dead ends: 806 [2024-10-12 19:29:59,048 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 [2024-10-12 19:29:59,049 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 2291 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:29:59,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 1525 Invalid, 4436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:29:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-10-12 19:29:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 698. [2024-10-12 19:29:59,075 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) [2024-10-12 19:29:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1148 transitions. [2024-10-12 19:29:59,077 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1148 transitions. Word has length 138 [2024-10-12 19:29:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:29:59,078 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1148 transitions. [2024-10-12 19:29:59,078 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) [2024-10-12 19:29:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1148 transitions. [2024-10-12 19:29:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-12 19:29:59,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:29:59,081 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] [2024-10-12 19:29:59,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 19:29:59,281 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 [2024-10-12 19:29:59,282 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:29:59,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:29:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash -771800038, now seen corresponding path program 1 times [2024-10-12 19:29:59,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:29:59,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995640358] [2024-10-12 19:29:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:29:59,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:29:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:29:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:29:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:29:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:29:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:29:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:29:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:29:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:29:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:29:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:29:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:29:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:29:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:29:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:29:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 19:29:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-12 19:29:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-12 19:29:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:29:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:29:59,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:29:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995640358] [2024-10-12 19:29:59,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995640358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:29:59,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:29:59,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:29:59,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839494620] [2024-10-12 19:29:59,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:29:59,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:29:59,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:29:59,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:29:59,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:29:59,401 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) [2024-10-12 19:30:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:00,476 INFO L93 Difference]: Finished difference Result 1718 states and 2902 transitions. [2024-10-12 19:30:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:00,477 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 [2024-10-12 19:30:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:00,482 INFO L225 Difference]: With dead ends: 1718 [2024-10-12 19:30:00,482 INFO L226 Difference]: Without dead ends: 1088 [2024-10-12 19:30:00,484 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 [2024-10-12 19:30:00,484 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, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:00,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 735 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 19:30:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-10-12 19:30:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 990. [2024-10-12 19:30:00,516 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) [2024-10-12 19:30:00,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1663 transitions. [2024-10-12 19:30:00,519 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1663 transitions. Word has length 142 [2024-10-12 19:30:00,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:00,520 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1663 transitions. [2024-10-12 19:30:00,520 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) [2024-10-12 19:30:00,520 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1663 transitions. [2024-10-12 19:30:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-12 19:30:00,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:00,524 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] [2024-10-12 19:30:00,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 19:30:00,524 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:00,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash 844378518, now seen corresponding path program 1 times [2024-10-12 19:30:00,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:00,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198086408] [2024-10-12 19:30:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:30:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:30:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:30:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:30:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:30:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:30:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:30:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:30:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-12 19:30:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 19:30:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 19:30:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:00,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:00,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198086408] [2024-10-12 19:30:00,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198086408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:00,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:00,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:00,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627665327] [2024-10-12 19:30:00,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:00,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:00,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:00,634 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) [2024-10-12 19:30:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:01,623 INFO L93 Difference]: Finished difference Result 2435 states and 4159 transitions. [2024-10-12 19:30:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:01,624 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 [2024-10-12 19:30:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:01,630 INFO L225 Difference]: With dead ends: 2435 [2024-10-12 19:30:01,630 INFO L226 Difference]: Without dead ends: 1563 [2024-10-12 19:30:01,633 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 [2024-10-12 19:30:01,634 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1153 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:01,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 716 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 19:30:01,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-10-12 19:30:01,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1465. [2024-10-12 19:30:01,677 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) [2024-10-12 19:30:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2477 transitions. [2024-10-12 19:30:01,681 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2477 transitions. Word has length 143 [2024-10-12 19:30:01,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:01,681 INFO L471 AbstractCegarLoop]: Abstraction has 1465 states and 2477 transitions. [2024-10-12 19:30:01,682 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) [2024-10-12 19:30:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2477 transitions. [2024-10-12 19:30:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-12 19:30:01,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:01,687 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] [2024-10-12 19:30:01,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:30:01,688 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:01,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:01,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1099648652, now seen corresponding path program 1 times [2024-10-12 19:30:01,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:01,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116714292] [2024-10-12 19:30:01,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:01,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:30:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:30:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:30:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:30:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:30:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:30:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:30:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:30:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-12 19:30:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-12 19:30:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-12 19:30:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:01,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:01,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116714292] [2024-10-12 19:30:01,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116714292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:01,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:01,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:01,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731708888] [2024-10-12 19:30:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:01,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:01,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:01,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:01,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:01,790 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) [2024-10-12 19:30:02,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:02,717 INFO L93 Difference]: Finished difference Result 3497 states and 6037 transitions. [2024-10-12 19:30:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:02,717 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 [2024-10-12 19:30:02,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:02,728 INFO L225 Difference]: With dead ends: 3497 [2024-10-12 19:30:02,729 INFO L226 Difference]: Without dead ends: 2278 [2024-10-12 19:30:02,733 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 [2024-10-12 19:30:02,733 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1148 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:02,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 702 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:30:02,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2024-10-12 19:30:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2180. [2024-10-12 19:30:02,816 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) [2024-10-12 19:30:02,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3713 transitions. [2024-10-12 19:30:02,821 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3713 transitions. Word has length 144 [2024-10-12 19:30:02,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:02,822 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3713 transitions. [2024-10-12 19:30:02,822 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) [2024-10-12 19:30:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3713 transitions. [2024-10-12 19:30:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-12 19:30:02,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:02,830 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] [2024-10-12 19:30:02,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:30:02,830 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:02,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:02,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1354097045, now seen corresponding path program 1 times [2024-10-12 19:30:02,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:02,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286710011] [2024-10-12 19:30:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:30:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:30:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:30:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:30:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:30:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:30:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:30:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:30:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 19:30:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 19:30:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 19:30:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:02,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:02,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286710011] [2024-10-12 19:30:02,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286710011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:02,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:02,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:02,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547551692] [2024-10-12 19:30:02,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:02,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:02,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:02,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:02,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:02,919 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) [2024-10-12 19:30:03,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:03,875 INFO L93 Difference]: Finished difference Result 5139 states and 8950 transitions. [2024-10-12 19:30:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:03,876 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 [2024-10-12 19:30:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:03,889 INFO L225 Difference]: With dead ends: 5139 [2024-10-12 19:30:03,889 INFO L226 Difference]: Without dead ends: 3414 [2024-10-12 19:30:03,893 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 [2024-10-12 19:30:03,894 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1147 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:03,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 703 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:30:03,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2024-10-12 19:30:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3316. [2024-10-12 19:30:03,989 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) [2024-10-12 19:30:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 5671 transitions. [2024-10-12 19:30:03,997 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 5671 transitions. Word has length 145 [2024-10-12 19:30:03,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:03,997 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 5671 transitions. [2024-10-12 19:30:03,997 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) [2024-10-12 19:30:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 5671 transitions. [2024-10-12 19:30:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-12 19:30:04,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:04,009 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:30:04,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:30:04,010 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:04,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1573589008, now seen corresponding path program 1 times [2024-10-12 19:30:04,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:04,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362571808] [2024-10-12 19:30:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:04,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:30:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:30:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:30:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:30:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:30:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:30:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:30:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:30:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 19:30:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-12 19:30:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-12 19:30:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:04,114 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:04,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:04,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362571808] [2024-10-12 19:30:04,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362571808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:04,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:04,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:04,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151048687] [2024-10-12 19:30:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:04,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:04,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:04,119 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) [2024-10-12 19:30:05,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:05,171 INFO L93 Difference]: Finished difference Result 8094 states and 14148 transitions. [2024-10-12 19:30:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:05,171 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 [2024-10-12 19:30:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:05,193 INFO L225 Difference]: With dead ends: 8094 [2024-10-12 19:30:05,193 INFO L226 Difference]: Without dead ends: 5472 [2024-10-12 19:30:05,200 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 [2024-10-12 19:30:05,200 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1144 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:05,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 739 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:30:05,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2024-10-12 19:30:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5374. [2024-10-12 19:30:05,375 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) [2024-10-12 19:30:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 9190 transitions. [2024-10-12 19:30:05,395 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 9190 transitions. Word has length 146 [2024-10-12 19:30:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:05,396 INFO L471 AbstractCegarLoop]: Abstraction has 5374 states and 9190 transitions. [2024-10-12 19:30:05,396 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) [2024-10-12 19:30:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 9190 transitions. [2024-10-12 19:30:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-12 19:30:05,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:05,414 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] [2024-10-12 19:30:05,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:30:05,415 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:05,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:05,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1429294063, now seen corresponding path program 1 times [2024-10-12 19:30:05,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:05,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815051633] [2024-10-12 19:30:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:05,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:30:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:30:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:30:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:30:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:30:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:30:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 19:30:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-12 19:30:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 19:30:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:30:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-12 19:30:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:05,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:05,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815051633] [2024-10-12 19:30:05,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815051633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:05,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:05,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:05,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009006866] [2024-10-12 19:30:05,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:05,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:05,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:05,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:05,497 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) [2024-10-12 19:30:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:06,557 INFO L93 Difference]: Finished difference Result 13299 states and 23232 transitions. [2024-10-12 19:30:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:06,557 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 [2024-10-12 19:30:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:06,602 INFO L225 Difference]: With dead ends: 13299 [2024-10-12 19:30:06,602 INFO L226 Difference]: Without dead ends: 9005 [2024-10-12 19:30:06,615 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 [2024-10-12 19:30:06,616 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1145 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:06,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 715 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:30:06,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9005 states. [2024-10-12 19:30:06,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9005 to 8907. [2024-10-12 19:30:06,884 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) [2024-10-12 19:30:06,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8907 states to 8907 states and 15237 transitions. [2024-10-12 19:30:06,909 INFO L78 Accepts]: Start accepts. Automaton has 8907 states and 15237 transitions. Word has length 147 [2024-10-12 19:30:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:06,910 INFO L471 AbstractCegarLoop]: Abstraction has 8907 states and 15237 transitions. [2024-10-12 19:30:06,911 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) [2024-10-12 19:30:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 8907 states and 15237 transitions. [2024-10-12 19:30:06,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-12 19:30:06,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:06,962 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] [2024-10-12 19:30:06,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:30:06,962 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:06,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash -65895154, now seen corresponding path program 1 times [2024-10-12 19:30:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:06,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046930908] [2024-10-12 19:30:06,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:06,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:30:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:30:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:30:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:30:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:30:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 19:30:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 19:30:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 19:30:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 19:30:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-12 19:30:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-12 19:30:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:07,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:07,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046930908] [2024-10-12 19:30:07,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046930908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:07,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:07,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:07,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981024191] [2024-10-12 19:30:07,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:07,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:07,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:07,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:07,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:07,081 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) [2024-10-12 19:30:08,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:08,250 INFO L93 Difference]: Finished difference Result 23071 states and 40261 transitions. [2024-10-12 19:30:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:08,251 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 [2024-10-12 19:30:08,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:08,298 INFO L225 Difference]: With dead ends: 23071 [2024-10-12 19:30:08,298 INFO L226 Difference]: Without dead ends: 15677 [2024-10-12 19:30:08,317 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 [2024-10-12 19:30:08,318 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1143 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:08,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 737 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:30:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15677 states. [2024-10-12 19:30:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15677 to 15579. [2024-10-12 19:30:08,792 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) [2024-10-12 19:30:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15579 states to 15579 states and 26576 transitions. [2024-10-12 19:30:08,873 INFO L78 Accepts]: Start accepts. Automaton has 15579 states and 26576 transitions. Word has length 148 [2024-10-12 19:30:08,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:08,873 INFO L471 AbstractCegarLoop]: Abstraction has 15579 states and 26576 transitions. [2024-10-12 19:30:08,874 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) [2024-10-12 19:30:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 15579 states and 26576 transitions. [2024-10-12 19:30:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-12 19:30:08,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:08,935 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] [2024-10-12 19:30:08,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:30:08,935 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:08,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1925667952, now seen corresponding path program 1 times [2024-10-12 19:30:08,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:08,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848977760] [2024-10-12 19:30:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:08,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:30:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:30:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:30:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:30:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:30:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 19:30:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 19:30:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-12 19:30:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-12 19:30:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 19:30:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 19:30:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:09,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:09,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848977760] [2024-10-12 19:30:09,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848977760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:09,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:09,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:09,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997777394] [2024-10-12 19:30:09,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:09,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:09,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:09,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:09,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:09,101 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) [2024-10-12 19:30:10,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:10,653 INFO L93 Difference]: Finished difference Result 41238 states and 71859 transitions. [2024-10-12 19:30:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:10,654 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 [2024-10-12 19:30:10,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:10,743 INFO L225 Difference]: With dead ends: 41238 [2024-10-12 19:30:10,743 INFO L226 Difference]: Without dead ends: 27792 [2024-10-12 19:30:10,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:30:10,782 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1142 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:10,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 702 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:30:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27792 states. [2024-10-12 19:30:11,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27792 to 27694. [2024-10-12 19:30:11,749 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) [2024-10-12 19:30:11,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27694 states to 27694 states and 47155 transitions. [2024-10-12 19:30:11,825 INFO L78 Accepts]: Start accepts. Automaton has 27694 states and 47155 transitions. Word has length 149 [2024-10-12 19:30:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:11,827 INFO L471 AbstractCegarLoop]: Abstraction has 27694 states and 47155 transitions. [2024-10-12 19:30:11,828 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) [2024-10-12 19:30:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 27694 states and 47155 transitions. [2024-10-12 19:30:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-12 19:30:11,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:11,870 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] [2024-10-12 19:30:11,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 19:30:11,870 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:11,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:11,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2144601516, now seen corresponding path program 1 times [2024-10-12 19:30:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319411693] [2024-10-12 19:30:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:30:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:30:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:30:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:30:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:30:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-12 19:30:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-12 19:30:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-12 19:30:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 19:30:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-12 19:30:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-12 19:30:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:11,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319411693] [2024-10-12 19:30:11,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319411693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:11,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:11,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:11,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039792890] [2024-10-12 19:30:11,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:11,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:11,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:11,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:11,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:11,960 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) [2024-10-12 19:30:13,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:13,808 INFO L93 Difference]: Finished difference Result 75430 states and 130653 transitions. [2024-10-12 19:30:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:13,809 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 [2024-10-12 19:30:13,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:13,996 INFO L225 Difference]: With dead ends: 75430 [2024-10-12 19:30:13,996 INFO L226 Difference]: Without dead ends: 50616 [2024-10-12 19:30:14,068 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 [2024-10-12 19:30:14,068 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1137 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:14,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 708 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 19:30:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50616 states. [2024-10-12 19:30:15,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50616 to 50518. [2024-10-12 19:30:15,651 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) [2024-10-12 19:30:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50518 states to 50518 states and 85765 transitions. [2024-10-12 19:30:15,798 INFO L78 Accepts]: Start accepts. Automaton has 50518 states and 85765 transitions. Word has length 150 [2024-10-12 19:30:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:15,800 INFO L471 AbstractCegarLoop]: Abstraction has 50518 states and 85765 transitions. [2024-10-12 19:30:15,801 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) [2024-10-12 19:30:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 50518 states and 85765 transitions. [2024-10-12 19:30:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-12 19:30:15,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:15,858 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] [2024-10-12 19:30:15,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:30:15,858 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:15,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:15,859 INFO L85 PathProgramCache]: Analyzing trace with hash 549001616, now seen corresponding path program 1 times [2024-10-12 19:30:15,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:15,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535137958] [2024-10-12 19:30:15,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:15,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:30:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:30:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:30:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:30:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:30:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 19:30:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 19:30:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 19:30:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-12 19:30:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 19:30:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 19:30:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-12 19:30:15,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:15,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535137958] [2024-10-12 19:30:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535137958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:30:15,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:30:15,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:30:15,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528679482] [2024-10-12 19:30:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:30:15,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:30:15,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:15,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:30:15,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:30:15,945 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) [2024-10-12 19:30:18,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:18,835 INFO L93 Difference]: Finished difference Result 94177 states and 163559 transitions. [2024-10-12 19:30:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:30:18,835 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 [2024-10-12 19:30:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:19,188 INFO L225 Difference]: With dead ends: 94177 [2024-10-12 19:30:19,188 INFO L226 Difference]: Without dead ends: 93996 [2024-10-12 19:30:19,223 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 [2024-10-12 19:30:19,225 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1134 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:19,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 712 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:30:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93996 states. [2024-10-12 19:30:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93996 to 93898. [2024-10-12 19:30:22,264 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) [2024-10-12 19:30:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93898 states to 93898 states and 158777 transitions. [2024-10-12 19:30:22,644 INFO L78 Accepts]: Start accepts. Automaton has 93898 states and 158777 transitions. Word has length 151 [2024-10-12 19:30:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:30:22,645 INFO L471 AbstractCegarLoop]: Abstraction has 93898 states and 158777 transitions. [2024-10-12 19:30:22,645 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) [2024-10-12 19:30:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 93898 states and 158777 transitions. [2024-10-12 19:30:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-12 19:30:22,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:30:22,753 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] [2024-10-12 19:30:22,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:30:22,753 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:30:22,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:30:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash 468175309, now seen corresponding path program 1 times [2024-10-12 19:30:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:30:22,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677722055] [2024-10-12 19:30:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:22,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:30:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:30:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:30:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:30:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:30:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:30:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:30:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:30:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:30:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:30:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:30:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:30:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 19:30:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 19:30:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 19:30:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 19:30:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-12 19:30:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-12 19:30:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-12 19:30:23,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:30:23,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677722055] [2024-10-12 19:30:23,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677722055] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:30:23,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450400256] [2024-10-12 19:30:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:30:23,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:30:23,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:30:23,402 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) [2024-10-12 19:30:23,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 19:30:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:30:23,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 19:30:23,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:30:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-12 19:30:23,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:30:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-12 19:30:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450400256] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:30:24,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:30:24,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-10-12 19:30:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305527827] [2024-10-12 19:30:24,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:30:24,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-12 19:30:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:30:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-12 19:30:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2024-10-12 19:30:24,088 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) [2024-10-12 19:30:49,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:30:49,909 INFO L93 Difference]: Finished difference Result 561510 states and 998691 transitions. [2024-10-12 19:30:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2024-10-12 19:30:49,909 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 152 [2024-10-12 19:30:49,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:30:52,850 INFO L225 Difference]: With dead ends: 561510 [2024-10-12 19:30:52,850 INFO L226 Difference]: Without dead ends: 561332 [2024-10-12 19:30:53,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10363 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3723, Invalid=25689, Unknown=0, NotChecked=0, Total=29412 [2024-10-12 19:30:53,062 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 9077 mSDsluCounter, 9620 mSDsCounter, 0 mSdLazyCounter, 25204 mSolverCounterSat, 3617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9114 SdHoareTripleChecker+Valid, 10171 SdHoareTripleChecker+Invalid, 28821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3617 IncrementalHoareTripleChecker+Valid, 25204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:30:53,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9114 Valid, 10171 Invalid, 28821 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3617 Valid, 25204 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-10-12 19:30:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561332 states.