./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec6_product15.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 f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:06:07,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:06:07,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:06:07,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:06:07,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:06:07,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:06:07,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:06:07,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:06:07,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:06:07,571 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:06:07,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:06:07,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:06:07,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:06:07,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:06:07,574 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:06:07,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:06:07,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:06:07,575 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:06:07,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:06:07,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:06:07,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:06:07,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:06:07,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:06:07,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:06:07,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:06:07,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:06:07,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:06:07,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:06:07,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:06:07,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:06:07,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:06:07,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:06:07,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:06:07,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:06:07,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:06:07,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:06:07,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:06:07,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:06:07,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:06:07,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:06:07,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:06:07,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:06:07,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f690bd0b308b8d74e0ee0ea91ab3037911a0ede5caa4981030fbf7d571a3c297 [2024-11-08 15:06:07,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:06:07,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:06:07,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:06:07,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:06:07,906 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:06:07,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2024-11-08 15:06:09,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:06:09,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:06:09,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c [2024-11-08 15:06:09,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bed47c70/68e08e9d6c9f43ab94a134e2bba1ade8/FLAG8acf27082 [2024-11-08 15:06:09,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bed47c70/68e08e9d6c9f43ab94a134e2bba1ade8 [2024-11-08 15:06:09,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:06:09,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:06:09,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:06:09,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:06:09,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:06:09,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:06:09" (1/1) ... [2024-11-08 15:06:09,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706f2326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:09, skipping insertion in model container [2024-11-08 15:06:09,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:06:09" (1/1) ... [2024-11-08 15:06:09,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:06:10,047 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2024-11-08 15:06:10,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:06:10,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:06:10,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-08 15:06:10,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [273] [2024-11-08 15:06:10,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [282] [2024-11-08 15:06:10,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [582] [2024-11-08 15:06:10,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [599] [2024-11-08 15:06:10,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1003] [2024-11-08 15:06:10,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1107] [2024-11-08 15:06:10,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2181] [2024-11-08 15:06:10,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2219] [2024-11-08 15:06:10,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2265] [2024-11-08 15:06:10,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2540] [2024-11-08 15:06:10,525 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product15.cil.c[6819,6832] [2024-11-08 15:06:10,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:06:10,625 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:06:10,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10 WrapperNode [2024-11-08 15:06:10,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:06:10,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:06:10,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:06:10,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:06:10,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,712 INFO L138 Inliner]: procedures = 126, calls = 187, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 866 [2024-11-08 15:06:10,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:06:10,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:06:10,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:06:10,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:06:10,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,774 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-08 15:06:10,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,813 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:06:10,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:06:10,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:06:10,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:06:10,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (1/1) ... [2024-11-08 15:06:10,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:06:10,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:10,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:06:10,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:06:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 15:06:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 15:06:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-08 15:06:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-08 15:06:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-08 15:06:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-08 15:06:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 15:06:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 15:06:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 15:06:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 15:06:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 15:06:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 15:06:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-08 15:06:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-08 15:06:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 15:06:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 15:06:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 15:06:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 15:06:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 15:06:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 15:06:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:06:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-08 15:06:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-08 15:06:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 15:06:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 15:06:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 15:06:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 15:06:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 15:06:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 15:06:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 15:06:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 15:06:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-08 15:06:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-08 15:06:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 15:06:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 15:06:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 15:06:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 15:06:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:06:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 15:06:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 15:06:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 15:06:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 15:06:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 15:06:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:06:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:06:11,198 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:06:11,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:06:12,029 INFO L? ?]: Removed 371 outVars from TransFormulas that were not future-live. [2024-11-08 15:06:12,029 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:06:12,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:06:12,057 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:06:12,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:06:12 BoogieIcfgContainer [2024-11-08 15:06:12,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:06:12,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:06:12,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:06:12,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:06:12,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:06:09" (1/3) ... [2024-11-08 15:06:12,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abc0997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:06:12, skipping insertion in model container [2024-11-08 15:06:12,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:06:10" (2/3) ... [2024-11-08 15:06:12,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abc0997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:06:12, skipping insertion in model container [2024-11-08 15:06:12,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:06:12" (3/3) ... [2024-11-08 15:06:12,068 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2024-11-08 15:06:12,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:06:12,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:06:12,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:06:12,255 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;@12b8b879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:06:12,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:06:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 232 states have (on average 1.5301724137931034) internal successors, (355), 236 states have internal predecessors, (355), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-08 15:06:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 15:06:12,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:12,291 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:12,291 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:12,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 805072346, now seen corresponding path program 1 times [2024-11-08 15:06:12,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:12,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265179231] [2024-11-08 15:06:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:12,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:06:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:06:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:06:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:06:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:06:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:06:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:06:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:06:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:06:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:06:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:06:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:06:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:06:13,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:13,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265179231] [2024-11-08 15:06:13,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265179231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:06:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509620856] [2024-11-08 15:06:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:13,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:13,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:13,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:06:13,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:06:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:13,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:06:13,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:06:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:06:13,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:06:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509620856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:13,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:06:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 15:06:13,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571372588] [2024-11-08 15:06:13,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:13,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:06:13,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:06:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:06:13,693 INFO L87 Difference]: Start difference. First operand has 299 states, 232 states have (on average 1.5301724137931034) internal successors, (355), 236 states have internal predecessors, (355), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:13,765 INFO L93 Difference]: Finished difference Result 444 states and 648 transitions. [2024-11-08 15:06:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:06:13,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2024-11-08 15:06:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:13,787 INFO L225 Difference]: With dead ends: 444 [2024-11-08 15:06:13,789 INFO L226 Difference]: Without dead ends: 292 [2024-11-08 15:06:13,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:06:13,801 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:13,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:06:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-08 15:06:13,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-08 15:06:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 226 states have (on average 1.5221238938053097) internal successors, (344), 229 states have internal predecessors, (344), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-08 15:06:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 435 transitions. [2024-11-08 15:06:13,884 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 435 transitions. Word has length 114 [2024-11-08 15:06:13,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:13,887 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 435 transitions. [2024-11-08 15:06:13,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 435 transitions. [2024-11-08 15:06:13,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 15:06:13,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:13,900 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:13,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:06:14,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 15:06:14,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:14,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:14,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1418592762, now seen corresponding path program 1 times [2024-11-08 15:06:14,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:14,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055385706] [2024-11-08 15:06:14,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:06:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:06:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:06:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:06:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:06:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:06:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:06:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:06:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:06:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:06:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:06:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:06:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 15:06:14,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:14,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055385706] [2024-11-08 15:06:14,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055385706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:06:14,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290973493] [2024-11-08 15:06:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:14,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:14,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:14,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:06:14,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:06:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:14,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:06:14,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:06:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:06:14,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:06:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290973493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:14,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:06:14,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:06:14,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342058532] [2024-11-08 15:06:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:14,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:06:14,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:14,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:06:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:06:14,887 INFO L87 Difference]: Start difference. First operand 292 states and 435 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:14,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:14,940 INFO L93 Difference]: Finished difference Result 434 states and 629 transitions. [2024-11-08 15:06:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:06:14,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 115 [2024-11-08 15:06:14,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:14,944 INFO L225 Difference]: With dead ends: 434 [2024-11-08 15:06:14,944 INFO L226 Difference]: Without dead ends: 295 [2024-11-08 15:06:14,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:06:14,946 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:14,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 864 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:06:14,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-08 15:06:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 294. [2024-11-08 15:06:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 228 states have (on average 1.5175438596491229) internal successors, (346), 231 states have internal predecessors, (346), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-08 15:06:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 437 transitions. [2024-11-08 15:06:14,980 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 437 transitions. Word has length 115 [2024-11-08 15:06:14,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:14,982 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 437 transitions. [2024-11-08 15:06:14,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 437 transitions. [2024-11-08 15:06:14,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 15:06:14,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:14,986 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:15,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:06:15,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 15:06:15,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:15,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:15,188 INFO L85 PathProgramCache]: Analyzing trace with hash 998441391, now seen corresponding path program 1 times [2024-11-08 15:06:15,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:15,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083054575] [2024-11-08 15:06:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:15,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:06:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:06:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:06:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:06:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:06:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:06:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:06:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:06:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:06:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:06:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:06:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:06:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,496 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:06:15,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:15,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083054575] [2024-11-08 15:06:15,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083054575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:06:15,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011706345] [2024-11-08 15:06:15,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:15,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:15,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:15,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:06:15,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:06:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:15,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:06:15,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:06:15,841 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:06:15,842 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:06:15,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011706345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:15,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:06:15,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:06:15,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948194328] [2024-11-08 15:06:15,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:15,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:06:15,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:15,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:06:15,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:06:15,845 INFO L87 Difference]: Start difference. First operand 294 states and 437 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:15,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:15,872 INFO L93 Difference]: Finished difference Result 618 states and 933 transitions. [2024-11-08 15:06:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:06:15,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-11-08 15:06:15,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:15,877 INFO L225 Difference]: With dead ends: 618 [2024-11-08 15:06:15,878 INFO L226 Difference]: Without dead ends: 351 [2024-11-08 15:06:15,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:06:15,882 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 107 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:15,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 837 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:06:15,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-08 15:06:15,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 343. [2024-11-08 15:06:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 266 states have (on average 1.5338345864661653) internal successors, (408), 269 states have internal predecessors, (408), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-08 15:06:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 521 transitions. [2024-11-08 15:06:15,921 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 521 transitions. Word has length 124 [2024-11-08 15:06:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:15,921 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 521 transitions. [2024-11-08 15:06:15,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 521 transitions. [2024-11-08 15:06:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 15:06:15,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:15,924 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:15,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 15:06:16,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:16,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:16,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash 857792301, now seen corresponding path program 1 times [2024-11-08 15:06:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580285024] [2024-11-08 15:06:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:16,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:06:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:06:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:06:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 15:06:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:06:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:06:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:06:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:06:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:06:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:06:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:06:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:06:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:06:16,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:16,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580285024] [2024-11-08 15:06:16,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580285024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:06:16,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017174854] [2024-11-08 15:06:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:16,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:16,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:16,453 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:06:16,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:06:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:16,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:06:16,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:06:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:06:16,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:06:16,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017174854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:16,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:06:16,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:06:16,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426239245] [2024-11-08 15:06:16,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:16,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:06:16,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:16,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:06:16,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:06:16,842 INFO L87 Difference]: Start difference. First operand 343 states and 521 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:16,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:16,907 INFO L93 Difference]: Finished difference Result 677 states and 1032 transitions. [2024-11-08 15:06:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:06:16,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2024-11-08 15:06:16,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:16,912 INFO L225 Difference]: With dead ends: 677 [2024-11-08 15:06:16,914 INFO L226 Difference]: Without dead ends: 345 [2024-11-08 15:06:16,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:06:16,917 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 2 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:16,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1697 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:06:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-08 15:06:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-08 15:06:16,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 267 states have (on average 1.5318352059925093) internal successors, (409), 271 states have internal predecessors, (409), 57 states have call successors, (57), 19 states have call predecessors, (57), 20 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-11-08 15:06:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 524 transitions. [2024-11-08 15:06:16,940 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 524 transitions. Word has length 125 [2024-11-08 15:06:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:16,941 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 524 transitions. [2024-11-08 15:06:16,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:16,942 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 524 transitions. [2024-11-08 15:06:16,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 15:06:16,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:16,948 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:16,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:06:17,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:17,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:17,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:17,149 INFO L85 PathProgramCache]: Analyzing trace with hash 665861629, now seen corresponding path program 1 times [2024-11-08 15:06:17,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:17,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010561441] [2024-11-08 15:06:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:06:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 15:06:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:06:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:06:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:06:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:06:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:06:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:06:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:06:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:06:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:06:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:06:17,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:17,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010561441] [2024-11-08 15:06:17,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010561441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:06:17,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669254669] [2024-11-08 15:06:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:17,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:17,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:17,477 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:06:17,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:06:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:17,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:06:17,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:06:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:06:17,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:06:17,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669254669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:17,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:06:17,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 15:06:17,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309096101] [2024-11-08 15:06:17,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:17,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:06:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:06:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:06:17,853 INFO L87 Difference]: Start difference. First operand 345 states and 524 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:17,926 INFO L93 Difference]: Finished difference Result 679 states and 1037 transitions. [2024-11-08 15:06:17,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:06:17,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2024-11-08 15:06:17,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:17,930 INFO L225 Difference]: With dead ends: 679 [2024-11-08 15:06:17,930 INFO L226 Difference]: Without dead ends: 347 [2024-11-08 15:06:17,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:06:17,933 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 2 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:17,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1683 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:06:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-08 15:06:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-08 15:06:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 268 states have (on average 1.5298507462686568) internal successors, (410), 273 states have internal predecessors, (410), 57 states have call successors, (57), 19 states have call predecessors, (57), 21 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-08 15:06:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 530 transitions. [2024-11-08 15:06:17,948 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 530 transitions. Word has length 126 [2024-11-08 15:06:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:17,948 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 530 transitions. [2024-11-08 15:06:17,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 530 transitions. [2024-11-08 15:06:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 15:06:17,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:17,952 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:17,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:06:18,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:18,156 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:18,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:18,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1631526244, now seen corresponding path program 1 times [2024-11-08 15:06:18,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:18,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473485421] [2024-11-08 15:06:18,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:18,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 15:06:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:06:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:06:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:06:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:06:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:06:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:06:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:06:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:06:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:06:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:06:18,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:18,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473485421] [2024-11-08 15:06:18,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473485421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:18,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:18,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:06:18,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501247340] [2024-11-08 15:06:18,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:18,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:06:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:06:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:06:18,450 INFO L87 Difference]: Start difference. First operand 347 states and 530 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:20,296 INFO L93 Difference]: Finished difference Result 765 states and 1170 transitions. [2024-11-08 15:06:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:06:20,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2024-11-08 15:06:20,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:20,301 INFO L225 Difference]: With dead ends: 765 [2024-11-08 15:06:20,301 INFO L226 Difference]: Without dead ends: 441 [2024-11-08 15:06:20,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:06:20,303 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 886 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:20,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1108 Invalid, 2141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:06:20,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-08 15:06:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 347. [2024-11-08 15:06:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 268 states have (on average 1.5298507462686568) internal successors, (410), 273 states have internal predecessors, (410), 57 states have call successors, (57), 19 states have call predecessors, (57), 21 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-11-08 15:06:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 529 transitions. [2024-11-08 15:06:20,345 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 529 transitions. Word has length 127 [2024-11-08 15:06:20,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:20,345 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 529 transitions. [2024-11-08 15:06:20,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 529 transitions. [2024-11-08 15:06:20,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 15:06:20,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:20,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-08 15:06:20,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:06:20,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:20,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:20,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1615735178, now seen corresponding path program 2 times [2024-11-08 15:06:20,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:20,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578825609] [2024-11-08 15:06:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:20,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:06:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:06:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:06:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:06:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:06:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:06:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:06:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:06:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:06:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:06:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:06:20,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:20,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578825609] [2024-11-08 15:06:20,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578825609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:20,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:20,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:06:20,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308672776] [2024-11-08 15:06:20,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:20,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:06:20,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:20,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:06:20,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:06:20,579 INFO L87 Difference]: Start difference. First operand 347 states and 529 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:22,223 INFO L93 Difference]: Finished difference Result 767 states and 1173 transitions. [2024-11-08 15:06:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:06:22,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 128 [2024-11-08 15:06:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:22,229 INFO L225 Difference]: With dead ends: 767 [2024-11-08 15:06:22,230 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 15:06:22,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:06:22,233 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 882 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:22,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1108 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:06:22,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 15:06:22,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 349. [2024-11-08 15:06:22,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 269 states have (on average 1.5278810408921932) internal successors, (411), 275 states have internal predecessors, (411), 57 states have call successors, (57), 19 states have call predecessors, (57), 22 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-11-08 15:06:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 532 transitions. [2024-11-08 15:06:22,270 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 532 transitions. Word has length 128 [2024-11-08 15:06:22,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:22,270 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 532 transitions. [2024-11-08 15:06:22,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-08 15:06:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 532 transitions. [2024-11-08 15:06:22,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 15:06:22,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:22,273 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:22,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:06:22,274 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:22,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:22,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1287818977, now seen corresponding path program 1 times [2024-11-08 15:06:22,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:22,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690129316] [2024-11-08 15:06:22,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:22,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:06:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:06:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:06:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:06:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:06:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:06:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:06:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:06:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:06:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:06:22,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690129316] [2024-11-08 15:06:22,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690129316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:22,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:22,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:06:22,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008757646] [2024-11-08 15:06:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:22,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:06:22,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:22,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:06:22,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:06:22,594 INFO L87 Difference]: Start difference. First operand 349 states and 532 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 15:06:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:24,814 INFO L93 Difference]: Finished difference Result 765 states and 1168 transitions. [2024-11-08 15:06:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:06:24,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 129 [2024-11-08 15:06:24,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:24,818 INFO L225 Difference]: With dead ends: 765 [2024-11-08 15:06:24,818 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 15:06:24,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:06:24,820 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 886 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3112 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 3396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 3112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:24,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1535 Invalid, 3396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 3112 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 15:06:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 15:06:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 349. [2024-11-08 15:06:24,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 269 states have (on average 1.5278810408921932) internal successors, (411), 275 states have internal predecessors, (411), 57 states have call successors, (57), 19 states have call predecessors, (57), 22 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-08 15:06:24,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 531 transitions. [2024-11-08 15:06:24,844 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 531 transitions. Word has length 129 [2024-11-08 15:06:24,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:24,845 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 531 transitions. [2024-11-08 15:06:24,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 15:06:24,845 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 531 transitions. [2024-11-08 15:06:24,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 15:06:24,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:24,847 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-08 15:06:24,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:06:24,848 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:24,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:24,848 INFO L85 PathProgramCache]: Analyzing trace with hash 75244176, now seen corresponding path program 2 times [2024-11-08 15:06:24,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:24,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110769789] [2024-11-08 15:06:24,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:24,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:24,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:24,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:24,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:24,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:24,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:06:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:06:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:06:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:06:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:06:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:06:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:06:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:06:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:06:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:06:25,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110769789] [2024-11-08 15:06:25,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110769789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:25,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:25,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:06:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432794712] [2024-11-08 15:06:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:25,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:06:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:25,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:06:25,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:06:25,096 INFO L87 Difference]: Start difference. First operand 349 states and 531 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 15:06:27,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:27,231 INFO L93 Difference]: Finished difference Result 767 states and 1174 transitions. [2024-11-08 15:06:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:06:27,232 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 130 [2024-11-08 15:06:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:27,234 INFO L225 Difference]: With dead ends: 767 [2024-11-08 15:06:27,235 INFO L226 Difference]: Without dead ends: 445 [2024-11-08 15:06:27,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:06:27,236 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 882 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3155 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 3437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 3155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:27,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1536 Invalid, 3437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 3155 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 15:06:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-08 15:06:27,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 351. [2024-11-08 15:06:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 270 states have (on average 1.525925925925926) internal successors, (412), 277 states have internal predecessors, (412), 57 states have call successors, (57), 19 states have call predecessors, (57), 23 states have return successors, (68), 56 states have call predecessors, (68), 56 states have call successors, (68) [2024-11-08 15:06:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 537 transitions. [2024-11-08 15:06:27,262 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 537 transitions. Word has length 130 [2024-11-08 15:06:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:27,263 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 537 transitions. [2024-11-08 15:06:27,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 15:06:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 537 transitions. [2024-11-08 15:06:27,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 15:06:27,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:27,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:27,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:06:27,266 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:27,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1821924102, now seen corresponding path program 1 times [2024-11-08 15:06:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:27,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529381413] [2024-11-08 15:06:27,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:27,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:06:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:06:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:06:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:06:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:06:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:06:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:06:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:06:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:06:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 15:06:27,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:27,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529381413] [2024-11-08 15:06:27,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529381413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:06:27,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822863596] [2024-11-08 15:06:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:27,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:27,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:06:27,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:06:27,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:06:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:27,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:06:27,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:06:27,878 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:27,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:06:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:27,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822863596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:06:27,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:06:27,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-08 15:06:27,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490956552] [2024-11-08 15:06:27,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:06:27,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 15:06:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 15:06:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:06:27,991 INFO L87 Difference]: Start difference. First operand 351 states and 537 transitions. Second operand has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-08 15:06:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:30,431 INFO L93 Difference]: Finished difference Result 1117 states and 1806 transitions. [2024-11-08 15:06:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 15:06:30,432 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 131 [2024-11-08 15:06:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:30,441 INFO L225 Difference]: With dead ends: 1117 [2024-11-08 15:06:30,442 INFO L226 Difference]: Without dead ends: 797 [2024-11-08 15:06:30,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:06:30,445 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 2036 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 3518 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 3518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:30,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 1703 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 3518 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 15:06:30,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-08 15:06:30,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 679. [2024-11-08 15:06:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 534 states have (on average 1.5786516853932584) internal successors, (843), 541 states have internal predecessors, (843), 121 states have call successors, (121), 19 states have call predecessors, (121), 23 states have return successors, (142), 120 states have call predecessors, (142), 120 states have call successors, (142) [2024-11-08 15:06:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1106 transitions. [2024-11-08 15:06:30,508 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1106 transitions. Word has length 131 [2024-11-08 15:06:30,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:30,508 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 1106 transitions. [2024-11-08 15:06:30,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-08 15:06:30,508 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1106 transitions. [2024-11-08 15:06:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 15:06:30,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:30,513 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:30,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 15:06:30,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:06:30,718 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:30,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:30,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1948072675, now seen corresponding path program 1 times [2024-11-08 15:06:30,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:30,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309390177] [2024-11-08 15:06:30,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:30,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:06:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:06:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:06:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:06:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:06:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:06:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:06:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:06:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:06:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:30,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309390177] [2024-11-08 15:06:30,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309390177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:30,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:30,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:30,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693046552] [2024-11-08 15:06:30,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:30,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:30,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:30,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:30,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:30,858 INFO L87 Difference]: Start difference. First operand 679 states and 1106 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:31,993 INFO L93 Difference]: Finished difference Result 1682 states and 2805 transitions. [2024-11-08 15:06:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:31,994 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-08 15:06:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:32,001 INFO L225 Difference]: With dead ends: 1682 [2024-11-08 15:06:32,002 INFO L226 Difference]: Without dead ends: 1081 [2024-11-08 15:06:32,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:32,005 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 985 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:32,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 868 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:06:32,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-08 15:06:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 979. [2024-11-08 15:06:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 770 states have (on average 1.594805194805195) internal successors, (1228), 777 states have internal predecessors, (1228), 185 states have call successors, (185), 19 states have call predecessors, (185), 23 states have return successors, (216), 184 states have call predecessors, (216), 184 states have call successors, (216) [2024-11-08 15:06:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1629 transitions. [2024-11-08 15:06:32,062 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1629 transitions. Word has length 134 [2024-11-08 15:06:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:32,062 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1629 transitions. [2024-11-08 15:06:32,062 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1629 transitions. [2024-11-08 15:06:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 15:06:32,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:32,068 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:32,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:06:32,069 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:32,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:32,069 INFO L85 PathProgramCache]: Analyzing trace with hash 150579466, now seen corresponding path program 1 times [2024-11-08 15:06:32,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:32,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829959830] [2024-11-08 15:06:32,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:32,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:06:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:06:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:06:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:06:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:06:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:06:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:06:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:06:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:06:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:32,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:32,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829959830] [2024-11-08 15:06:32,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829959830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:32,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:32,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:32,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343179071] [2024-11-08 15:06:32,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:32,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:32,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:32,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:32,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:32,226 INFO L87 Difference]: Start difference. First operand 979 states and 1629 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:33,455 INFO L93 Difference]: Finished difference Result 2422 states and 4085 transitions. [2024-11-08 15:06:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:33,456 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-08 15:06:33,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:33,467 INFO L225 Difference]: With dead ends: 2422 [2024-11-08 15:06:33,467 INFO L226 Difference]: Without dead ends: 1574 [2024-11-08 15:06:33,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:33,474 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 983 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:33,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 806 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:06:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-08 15:06:33,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1472. [2024-11-08 15:06:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1168 states have (on average 1.601027397260274) internal successors, (1870), 1175 states have internal predecessors, (1870), 280 states have call successors, (280), 19 states have call predecessors, (280), 23 states have return successors, (311), 279 states have call predecessors, (311), 279 states have call successors, (311) [2024-11-08 15:06:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2461 transitions. [2024-11-08 15:06:33,590 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2461 transitions. Word has length 135 [2024-11-08 15:06:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:33,591 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2461 transitions. [2024-11-08 15:06:33,591 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2461 transitions. [2024-11-08 15:06:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 15:06:33,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:33,600 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:33,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:06:33,601 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:33,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:33,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1204695761, now seen corresponding path program 1 times [2024-11-08 15:06:33,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:33,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994332863] [2024-11-08 15:06:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:33,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:06:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:06:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:06:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:06:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:06:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:06:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:06:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:06:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 15:06:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:33,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:33,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994332863] [2024-11-08 15:06:33,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994332863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:33,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:33,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:33,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30375800] [2024-11-08 15:06:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:33,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:33,743 INFO L87 Difference]: Start difference. First operand 1472 states and 2461 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:34,825 INFO L93 Difference]: Finished difference Result 3524 states and 6003 transitions. [2024-11-08 15:06:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:34,825 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 136 [2024-11-08 15:06:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:34,840 INFO L225 Difference]: With dead ends: 3524 [2024-11-08 15:06:34,840 INFO L226 Difference]: Without dead ends: 2318 [2024-11-08 15:06:34,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:34,846 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 981 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:34,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 808 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:06:34,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-08 15:06:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2216. [2024-11-08 15:06:34,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 1789 states have (on average 1.6059250978200112) internal successors, (2873), 1796 states have internal predecessors, (2873), 403 states have call successors, (403), 19 states have call predecessors, (403), 23 states have return successors, (450), 402 states have call predecessors, (450), 402 states have call successors, (450) [2024-11-08 15:06:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3726 transitions. [2024-11-08 15:06:34,954 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3726 transitions. Word has length 136 [2024-11-08 15:06:34,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:34,955 INFO L471 AbstractCegarLoop]: Abstraction has 2216 states and 3726 transitions. [2024-11-08 15:06:34,955 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3726 transitions. [2024-11-08 15:06:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 15:06:34,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:34,970 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:34,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:06:34,971 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:34,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:34,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1619904809, now seen corresponding path program 1 times [2024-11-08 15:06:34,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:34,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786368835] [2024-11-08 15:06:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:34,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:06:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:06:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:06:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:06:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:06:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:06:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:06:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:06:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 15:06:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:35,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:35,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786368835] [2024-11-08 15:06:35,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786368835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:35,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:35,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:35,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135852666] [2024-11-08 15:06:35,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:35,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:35,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:35,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:35,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:35,088 INFO L87 Difference]: Start difference. First operand 2216 states and 3726 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:36,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:36,205 INFO L93 Difference]: Finished difference Result 5233 states and 8983 transitions. [2024-11-08 15:06:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:36,206 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-11-08 15:06:36,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:36,226 INFO L225 Difference]: With dead ends: 5233 [2024-11-08 15:06:36,226 INFO L226 Difference]: Without dead ends: 3502 [2024-11-08 15:06:36,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:36,234 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 979 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:36,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 808 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:06:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2024-11-08 15:06:36,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 3400. [2024-11-08 15:06:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3400 states, 2794 states have (on average 1.608804581245526) internal successors, (4495), 2801 states have internal predecessors, (4495), 582 states have call successors, (582), 19 states have call predecessors, (582), 23 states have return successors, (655), 581 states have call predecessors, (655), 581 states have call successors, (655) [2024-11-08 15:06:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 5732 transitions. [2024-11-08 15:06:36,442 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 5732 transitions. Word has length 137 [2024-11-08 15:06:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:36,443 INFO L471 AbstractCegarLoop]: Abstraction has 3400 states and 5732 transitions. [2024-11-08 15:06:36,443 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 5732 transitions. [2024-11-08 15:06:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 15:06:36,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:36,458 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:36,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:06:36,459 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:36,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash -729060397, now seen corresponding path program 1 times [2024-11-08 15:06:36,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:36,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180301118] [2024-11-08 15:06:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:36,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:06:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:06:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:06:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:06:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:06:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:06:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:06:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:06:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:06:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:36,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:36,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180301118] [2024-11-08 15:06:36,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180301118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:36,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:36,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:36,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700611153] [2024-11-08 15:06:36,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:36,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:36,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:36,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:36,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:36,602 INFO L87 Difference]: Start difference. First operand 3400 states and 5732 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:37,911 INFO L93 Difference]: Finished difference Result 8306 states and 14299 transitions. [2024-11-08 15:06:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:37,912 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2024-11-08 15:06:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:37,945 INFO L225 Difference]: With dead ends: 8306 [2024-11-08 15:06:37,946 INFO L226 Difference]: Without dead ends: 5643 [2024-11-08 15:06:37,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:37,957 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 977 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:37,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 886 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:06:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2024-11-08 15:06:38,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5541. [2024-11-08 15:06:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 4559 states have (on average 1.6014476858960298) internal successors, (7301), 4566 states have internal predecessors, (7301), 958 states have call successors, (958), 19 states have call predecessors, (958), 23 states have return successors, (1075), 957 states have call predecessors, (1075), 957 states have call successors, (1075) [2024-11-08 15:06:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 9334 transitions. [2024-11-08 15:06:38,255 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 9334 transitions. Word has length 138 [2024-11-08 15:06:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:38,255 INFO L471 AbstractCegarLoop]: Abstraction has 5541 states and 9334 transitions. [2024-11-08 15:06:38,256 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 9334 transitions. [2024-11-08 15:06:38,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 15:06:38,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:38,277 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:38,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:06:38,278 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:38,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:38,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2108981893, now seen corresponding path program 1 times [2024-11-08 15:06:38,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:38,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149790790] [2024-11-08 15:06:38,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:06:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:06:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:06:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:06:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:06:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:06:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:06:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 15:06:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 15:06:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:38,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:38,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149790790] [2024-11-08 15:06:38,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149790790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:38,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:38,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:38,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614534819] [2024-11-08 15:06:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:38,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:38,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:38,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:38,410 INFO L87 Difference]: Start difference. First operand 5541 states and 9334 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:39,681 INFO L93 Difference]: Finished difference Result 13728 states and 23600 transitions. [2024-11-08 15:06:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:39,682 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-11-08 15:06:39,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:39,737 INFO L225 Difference]: With dead ends: 13728 [2024-11-08 15:06:39,737 INFO L226 Difference]: Without dead ends: 9326 [2024-11-08 15:06:39,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:39,752 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 975 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:39,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 812 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:06:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9326 states. [2024-11-08 15:06:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9326 to 9224. [2024-11-08 15:06:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9224 states, 7636 states have (on average 1.5987427972760608) internal successors, (12208), 7643 states have internal predecessors, (12208), 1564 states have call successors, (1564), 19 states have call predecessors, (1564), 23 states have return successors, (1759), 1563 states have call predecessors, (1759), 1563 states have call successors, (1759) [2024-11-08 15:06:40,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 15531 transitions. [2024-11-08 15:06:40,244 INFO L78 Accepts]: Start accepts. Automaton has 9224 states and 15531 transitions. Word has length 139 [2024-11-08 15:06:40,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:40,245 INFO L471 AbstractCegarLoop]: Abstraction has 9224 states and 15531 transitions. [2024-11-08 15:06:40,246 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand 9224 states and 15531 transitions. [2024-11-08 15:06:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 15:06:40,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:40,276 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:40,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:06:40,277 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:40,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:40,277 INFO L85 PathProgramCache]: Analyzing trace with hash 867824497, now seen corresponding path program 1 times [2024-11-08 15:06:40,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:40,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817135252] [2024-11-08 15:06:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:06:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:06:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:06:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:06:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:06:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:06:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:06:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 15:06:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 15:06:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:40,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:40,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817135252] [2024-11-08 15:06:40,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817135252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:40,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:40,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:40,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780116778] [2024-11-08 15:06:40,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:40,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:40,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:40,393 INFO L87 Difference]: Start difference. First operand 9224 states and 15531 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:41,851 INFO L93 Difference]: Finished difference Result 23912 states and 41041 transitions. [2024-11-08 15:06:41,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:41,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2024-11-08 15:06:41,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:41,910 INFO L225 Difference]: With dead ends: 23912 [2024-11-08 15:06:41,910 INFO L226 Difference]: Without dead ends: 16279 [2024-11-08 15:06:41,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:41,936 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 973 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:41,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 841 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:06:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16279 states. [2024-11-08 15:06:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16279 to 16177. [2024-11-08 15:06:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16177 states, 13386 states have (on average 1.589571193784551) internal successors, (21278), 13393 states have internal predecessors, (21278), 2767 states have call successors, (2767), 19 states have call predecessors, (2767), 23 states have return successors, (3106), 2766 states have call predecessors, (3106), 2766 states have call successors, (3106) [2024-11-08 15:06:42,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16177 states to 16177 states and 27151 transitions. [2024-11-08 15:06:42,770 INFO L78 Accepts]: Start accepts. Automaton has 16177 states and 27151 transitions. Word has length 140 [2024-11-08 15:06:42,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:42,771 INFO L471 AbstractCegarLoop]: Abstraction has 16177 states and 27151 transitions. [2024-11-08 15:06:42,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 16177 states and 27151 transitions. [2024-11-08 15:06:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 15:06:42,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:42,823 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:42,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:06:42,824 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:42,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash 802280196, now seen corresponding path program 1 times [2024-11-08 15:06:42,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:42,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840216723] [2024-11-08 15:06:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:42,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:06:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:06:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:06:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:06:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:06:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:06:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:06:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 15:06:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 15:06:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840216723] [2024-11-08 15:06:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840216723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:42,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:42,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:42,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006142990] [2024-11-08 15:06:42,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:42,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:42,975 INFO L87 Difference]: Start difference. First operand 16177 states and 27151 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:44,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:44,813 INFO L93 Difference]: Finished difference Result 42878 states and 73438 transitions. [2024-11-08 15:06:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2024-11-08 15:06:44,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:44,942 INFO L225 Difference]: With dead ends: 42878 [2024-11-08 15:06:44,943 INFO L226 Difference]: Without dead ends: 28934 [2024-11-08 15:06:44,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:44,992 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 971 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:44,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 806 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:06:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28934 states. [2024-11-08 15:06:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28934 to 28832. [2024-11-08 15:06:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28832 states, 24002 states have (on average 1.5850762436463628) internal successors, (38045), 24009 states have internal predecessors, (38045), 4806 states have call successors, (4806), 19 states have call predecessors, (4806), 23 states have return successors, (5419), 4805 states have call predecessors, (5419), 4805 states have call successors, (5419) [2024-11-08 15:06:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28832 states to 28832 states and 48270 transitions. [2024-11-08 15:06:46,525 INFO L78 Accepts]: Start accepts. Automaton has 28832 states and 48270 transitions. Word has length 141 [2024-11-08 15:06:46,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:46,526 INFO L471 AbstractCegarLoop]: Abstraction has 28832 states and 48270 transitions. [2024-11-08 15:06:46,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:46,526 INFO L276 IsEmpty]: Start isEmpty. Operand 28832 states and 48270 transitions. [2024-11-08 15:06:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 15:06:46,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:46,573 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:46,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:06:46,574 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:46,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1206233425, now seen corresponding path program 1 times [2024-11-08 15:06:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705662030] [2024-11-08 15:06:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:46,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:06:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:06:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:06:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:06:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:06:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:06:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:06:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 15:06:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 15:06:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705662030] [2024-11-08 15:06:46,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705662030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:46,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:46,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045817160] [2024-11-08 15:06:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:46,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:46,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:46,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:46,886 INFO L87 Difference]: Start difference. First operand 28832 states and 48270 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:49,276 INFO L93 Difference]: Finished difference Result 78640 states and 133802 transitions. [2024-11-08 15:06:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2024-11-08 15:06:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:49,505 INFO L225 Difference]: With dead ends: 78640 [2024-11-08 15:06:49,505 INFO L226 Difference]: Without dead ends: 52813 [2024-11-08 15:06:49,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:49,571 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 969 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:49,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 817 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 15:06:49,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52813 states. [2024-11-08 15:06:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52813 to 52711. [2024-11-08 15:06:51,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52711 states, 44166 states have (on average 1.579223837340941) internal successors, (69748), 44173 states have internal predecessors, (69748), 8521 states have call successors, (8521), 19 states have call predecessors, (8521), 23 states have return successors, (9666), 8520 states have call predecessors, (9666), 8520 states have call successors, (9666) [2024-11-08 15:06:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52711 states to 52711 states and 87935 transitions. [2024-11-08 15:06:52,145 INFO L78 Accepts]: Start accepts. Automaton has 52711 states and 87935 transitions. Word has length 142 [2024-11-08 15:06:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:06:52,146 INFO L471 AbstractCegarLoop]: Abstraction has 52711 states and 87935 transitions. [2024-11-08 15:06:52,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand 52711 states and 87935 transitions. [2024-11-08 15:06:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 15:06:52,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:06:52,206 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:06:52,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:06:52,207 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:06:52,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:06:52,207 INFO L85 PathProgramCache]: Analyzing trace with hash 733951492, now seen corresponding path program 1 times [2024-11-08 15:06:52,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:06:52,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644487614] [2024-11-08 15:06:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:06:52,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:06:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:06:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:06:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:06:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:06:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:06:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:06:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:06:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:06:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:06:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:06:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:06:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:06:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:06:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 15:06:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 15:06:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:06:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 15:06:52,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:06:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644487614] [2024-11-08 15:06:52,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644487614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:06:52,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:06:52,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:06:52,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055623124] [2024-11-08 15:06:52,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:06:52,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:06:52,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:06:52,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:06:52,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:06:52,752 INFO L87 Difference]: Start difference. First operand 52711 states and 87935 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:06:55,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:06:55,734 INFO L93 Difference]: Finished difference Result 98411 states and 167732 transitions. [2024-11-08 15:06:55,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:06:55,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2024-11-08 15:06:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:06:56,217 INFO L225 Difference]: With dead ends: 98411 [2024-11-08 15:06:56,218 INFO L226 Difference]: Without dead ends: 98272 [2024-11-08 15:06:56,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:06:56,263 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 964 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:06:56,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 846 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:06:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98272 states. [2024-11-08 15:06:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98272 to 98170. [2024-11-08 15:06:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98170 states, 82826 states have (on average 1.5719097867819283) internal successors, (130195), 82833 states have internal predecessors, (130195), 15320 states have call successors, (15320), 19 states have call predecessors, (15320), 23 states have return successors, (17511), 15319 states have call predecessors, (17511), 15319 states have call successors, (17511) [2024-11-08 15:07:00,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98170 states to 98170 states and 163026 transitions. [2024-11-08 15:07:00,192 INFO L78 Accepts]: Start accepts. Automaton has 98170 states and 163026 transitions. Word has length 143 [2024-11-08 15:07:00,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:00,193 INFO L471 AbstractCegarLoop]: Abstraction has 98170 states and 163026 transitions. [2024-11-08 15:07:00,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 15:07:00,194 INFO L276 IsEmpty]: Start isEmpty. Operand 98170 states and 163026 transitions. [2024-11-08 15:07:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 15:07:00,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:00,279 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:07:00,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:07:00,279 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:00,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:00,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1597962576, now seen corresponding path program 1 times [2024-11-08 15:07:00,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:00,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070364625] [2024-11-08 15:07:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:00,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:00,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:00,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:00,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:07:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:07:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:07:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:07:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:07:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:07:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:07:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:07:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:07:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 15:07:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 15:07:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 15:07:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 15:07:01,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:07:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070364625] [2024-11-08 15:07:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070364625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:07:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909344385] [2024-11-08 15:07:01,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:01,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:01,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:07:01,305 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:07:01,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 15:07:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:01,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 15:07:01,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:07:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 15:07:02,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:07:02,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909344385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:07:02,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:07:02,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2024-11-08 15:07:02,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255958410] [2024-11-08 15:07:02,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:07:02,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:07:02,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:07:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:07:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2024-11-08 15:07:02,056 INFO L87 Difference]: Start difference. First operand 98170 states and 163026 transitions. Second operand has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-08 15:07:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:07:06,814 INFO L93 Difference]: Finished difference Result 195643 states and 330386 transitions. [2024-11-08 15:07:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:07:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 144 [2024-11-08 15:07:06,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:07:07,911 INFO L225 Difference]: With dead ends: 195643 [2024-11-08 15:07:07,911 INFO L226 Difference]: Without dead ends: 195510 [2024-11-08 15:07:07,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 15:07:07,983 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 1129 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:07:07,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 4194 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:07:08,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195510 states. [2024-11-08 15:07:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195510 to 195482. [2024-11-08 15:07:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195482 states, 164996 states have (on average 1.57280176489127) internal successors, (259506), 164898 states have internal predecessors, (259506), 30429 states have call successors, (30429), 50 states have call predecessors, (30429), 56 states have return successors, (38082), 30539 states have call predecessors, (38082), 30426 states have call successors, (38082) [2024-11-08 15:07:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195482 states to 195482 states and 328017 transitions. [2024-11-08 15:07:16,502 INFO L78 Accepts]: Start accepts. Automaton has 195482 states and 328017 transitions. Word has length 144 [2024-11-08 15:07:16,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:07:16,503 INFO L471 AbstractCegarLoop]: Abstraction has 195482 states and 328017 transitions. [2024-11-08 15:07:16,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-08 15:07:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 195482 states and 328017 transitions. [2024-11-08 15:07:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 15:07:16,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:07:16,706 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:07:16,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 15:07:16,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:07:16,906 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:07:16,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:07:16,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1902021819, now seen corresponding path program 1 times [2024-11-08 15:07:16,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:07:16,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568025098] [2024-11-08 15:07:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:07:16,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:07:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:17,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:07:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:17,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:07:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:17,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:07:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:17,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:07:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:07:17,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32